841 Math (2007)

Anthony D'S SCRIBE

2008-05-14T20:25:00.000-07:00

Marlon's Scribe Post

2008-05-14T15:23:00.000-07:00

1. Ms. Enigma said, " Five less than one third of my age is 14." How old is Ms. Enigma?

Ms. Enigma is_____.<----- your x
x-5, 1/3 x---> x/3 x/3 -5=14 let x= Ms. Enigma's age.
+5 +5 Substitute to check...
x/3=19 x/3 -5=14
x3 x3 57/3 -5=14
x=57 19-5=14
14=14 Ms. Enigma is 57.

2. Suppose you have $50 and earn $8 per hour. How many hours must you work until you have $170?

I must work_____.<----- your x
8x+50=170 Let x = hours of work
-50 -50 Substitute to check...
8x=170 8x+50=170
/8 /8 8(15)+50=170
x=15 170=170 I must work 15 hours.

3. Valley Vudei charges a $12 annual fee plus $3 per movie for rentals. Last year., Jennifer spent $90 at the store. How many movis did she rent?

Jennifer rented_____.<----- your x
3x+12=90 Let x = # of rented movies
-12 -12 Substitute to check...
3x=78 3x+12=90
/3 /3 3(26)+12=90
x=26 90=90 Jennifer rented 90 movies.

4. Kimo's car needed work. The mechanic charged him $130 for parts plus $40 per hour for labour. If the bill totaled $270, how many movies did she rent?

Kimo will labor_____.<----- your x
40x+130=270 Let x = hours of labour required

-130 -130 Substitute to check...
40x=270 40x+130=270
/40 /40 40(3.5)+130=270
x=3.5 270=270 Kimo will labor 3.5 hours.
5. Suppose you are a salesperson for Quark Computer company. Each month you earn $400 plus one sixth of your sales. What amount must you sell this month to earn $2000?

I must sell_____.<----------- your x
1/6 x-->x/6 x/6+400=2000 let x = amount I must sell
-400 -400 Substitute to check...
x/6=1600 x/6 + 400=2000
x6 x6 9600/6 + 400 =2000
x=9600 2000=2000 I must sell 9600.
-Marlon

Mary's Scribe Post

2008-05-13T19:26:00.000-07:00

BubbleShare: Share photos - Find great Clip Art Images.

Kat's Scribe

2008-05-13T18:50:00.000-07:00

May 13, 2008

Today in class, we were given a worksheet for homework. On one side, there are eight geometry questions. Here are the first four of these questions:

1. The length of a rectangle is 3 times the width. The perimeter id 96cm. Find the width and length.

2. The length of a rectangle is 5m greater than the width. The perimeter is 150m. Find the width and length.

3. The width of a rectangle is 12 cm less than the length. The perimeter is 156cm. Find the width and length.

4. The length of a rectangle is 2cm less than 7 times the width. The perimeter is 60cm. Find the width and length.

BUT WAIT!!

Before you attempt to solve these questions, take a look at the slide show beneath. It tells you 7 Steps to Solving the questions. It should make solving easier for you.

BubbleShare: Share photos - Powered by BubbleShare

And now back to the questions.

1. The length of a rectangle is 3 times the width. The perimeter id 96cm. Find the width and length.

2. The length of a rectangle is 5m greater than the width. The perimeter is 150m. Find the width and length.

3. The width of a rectangle is 12 cm less than the length. The perimeter is 156cm. Find the width and length.

4. The length of a rectangle is 2cm less than 7 times the width. The perimeter is 60cm. Find the width and length.

Kate's Scribe : The E-True Hollywood Story

2008-05-07T19:12:00.000-07:00

The E-True Hollywood Story...

Negative X

Jessica Q's Scribe Post

2008-05-05T18:31:00.000-07:00

Jessica Q's Scribe Post:

Like Terms
&
The Distributive Property

Charity's Scribe

2008-05-04T16:54:00.000-07:00

For question 4 I got it wrong because I was supposed to put decreased and not less than.
For question 6 I got it wrong because I was supposed to put the 7 infront of 4x
So as you can see I would have gotten it right if only I wrote them opposite from each other.

I got write the algebriac expression or equation for the pattern you notice wrong because I rushed and The answer on the very right lower corner isn't even understandable.

My T-Chart has the (x) axis on the left and the (y) axis on the right because that is the order it has to be in.

Jeanine's Scribe.

2008-05-02T17:03:00.000-07:00

So, this is my scribe for the Patterns and Relations Investigation Answer sheets.

Chaseley's Scribe

2008-05-01T18:16:00.001-07:00

Car Repairs

when you draw a t-table you have to make sure x is on the right if you are doing it from top to bottom. When it is laying down make sure the x is on the bottom.

When I said add one to figure number i meant to add one to x ( 1 + 1) . Then add 2 to y (1 + 2 = 3)

The algebraic expression I found was 2x - 1 =y.

Then I drew a chart to explain my answers.
When you draw a chart make sure you have your labels or you'll lose marks. When you number your chart always check if you marked it right on the line, not in the center. For "y" make sure you don't go up by 1,3,5,7,9,11. go up by 2's 3's 4's 5's or which ever way fits best. In this chart going up by 2's are the best.

Dhonell's Scribe Post

2008-05-01T17:29:00.000-07:00

Today we learned about Algebra Tiles. We were given tiles which related to Algebra. Algebra looked like this.

The colored tiles were negative intergers. The white tiles were positive intergers. The little square is a 1. The long tile is the variable. While the big square is a variable squared.

In grade 8, you would only need to know about the long tiles and the small squares. In grade 9, you would use all 3.

We then learned about the terms we would need to know for Algebra.

Terms
Variables- n/x/any letter- any number can be a variable
Constants- +1/-1 -the number that never changes
Intergers
When you have intergers, think money.
- = owe money
+ = have money

We were then given practice questions to do.
Somethings to know before doing these qustions.
1 .Simplify liked terms
2 .Always try to have one variable & one constant on the other side of the equal sign.
3 .Variable goes first.
Here is some of the questions:
Example 1:

This is how the question would look like first(4n)(-2)(+1)(-3n). If you dont get the way the question is, you can put bubbles to seperate the intergers.
Then you notice that i put a red X through the white and green variable. That shows that there was a zero pair.
Next you simplify the liked terms. Where you get one positive variable and one negative 1.

Death Blow of Intergers

In this section, we talked about how if theirs intergers in questions with brackets, its a different story.
6 -(-3) When you see there are (-) signs touching, it means you can add.
6 + 3 = 9

6-(-3+2) When you get something like this, you do the brackets first.
6-(-1) = 7 Notice how the -(- looks like a plus sign. Thats a key trick when remembering (-) touch mean adding.

Conclusion
In class, we learned about algebra and got a ton of homework. Which im almost done so go me ! And thats all of my scribe post.

Marlon's Scribe

2008-05-01T14:28:00.000-07:00

Pg 1

Write the following expressions in words

1. 2x-9

2. 10-4x

3. 5(x-8)

4. 7(x+5)

Write the following statements as algebraic expressions

5. 6 centimeters more than two thirds of length x

6. three times the sum of a number and two

7. nine decreased by two times a number

8.four less than five times a number

whole page /8

Pg 2

The following graph shows the first four terms of a pattern.

A) Create a chart that shows the first 10 terms of the pattern. 3 Marks

B) Write the algebraic expression for the relationship between the hours spent walking and the number of kilometres walked. 3 Marks

C) Using your algebraic expression determine how far they could walk after 50 hours. 2 Marks

whole page /8

Whole Test /16

Jessica B's B.O.B.

2008-04-19T16:56:00.000-07:00

Surface Area
The surface area is the measurment of the outside part of a shape.

^^CLICK for bigger picture^^

Volume
Volume is the measurement of how much space a shape takes up.

^^CLICK for bigger picture^^

Jessica Q's Scribe Post

2008-04-17T19:44:00.000-07:00

Circumference of a Circle:

The circumference(c) of a circle is the distance around the circle.
c = 2πr
The radius (r) of a circle is the distance from the center of the circle to the outside.
The diameter(d) of a circle is the length of half of the circle or twice the length of the radius.
π or pi is a constant and is approximately equal to 3.14
FORMULA:
Radius: d / 2
Diameter: 2 x r
Circumference: 2 x π x r

Area of a Circle:
Radius² - Area of a circle
- Area of circle = πr²
π (Pi) - 3.14
The Area - (3.14)(r²)

Surface Area of a Cylinder:

Volume of a Cylinder:

Formula:
Volume = Area of base x height

Chaseley's BOB

2008-04-15T18:43:00.000-07:00

Surface Area Of a Rectangular Prism

surface area is the total amount of area a whole 3D shape contains.

formula: area front + area back+area side+ area side2+area top+area top+area bottom.

area front + area back = L x W
area side + area side2 = W x H
area top+ area bottom = L x H

SA = area front + area back+area side+ area side2+area top+area top+area bottom. SA= 2 (L x W) + 2(W x H) + 2 (Hx L)
SA= 2 (4cm ² x2cm ²) + 2 (4 cm ² x 2 cm ²) + 2( 2cm ² x 2cm ²)
SA= 2 (8cm ²) + 2 (8 cm ²) + 2 (4 cm ²)
SA= 16cm ²+16cm ²+8cm ²
SA= 40 cm ²

looks complicated ? REALLY ITS NOT :)

___________________________________________________________

volume of a rectangular prism

V=(L X W) x H
V= (17cm ² x 11 cm ²) x 1 cm ²
V= 187 cm ² x 1cm ²
V=187cm³

Volume is the amount of space an object takes up.

FORMULA: LxWxH= volume³

Lukes BOB

2008-04-15T10:35:00.000-07:00

SA=4+4+4+4+4+4=24

6(4cm)=24cm

V=l*w*h

4*4*4=64cm3

Anthony's BOB

2008-04-14T20:44:00.000-07:00

It was working at my house, but when I tried it at school and it wasn't working.
If you can't see it ill try to make another one...

Dhonell's Bob

2008-04-14T19:36:00.000-07:00

Surface Area

Surface Area is the area of the outside of a shape. Im going to show you how to get the surface area of a rectangular prism.

First you need to make a net. The net shows the front, the back, the top, the bottom, and the sides. But the front and the back are the same area, the top and bottom are the same, and so are the sides.

Once you have your net. You use the simple formula for adding the measuerments. (LxW)(WxH)(HxL) Since the net is flat, you have to square the number.

Well after you use the formulas with the measurements, you can add it up and get the surface area. You can use the example I gave you to help better understand.

Volume:
Volume is how much the entire shape takes up. To get the volume of a rectangular prism, you multiply the length (L), width (W), and height (H). That will get you the volume of the entire shape. The answer, is always cubed or in 3. ex. 18 cubic(3) centimeters.

Kate's BOB

2008-04-14T19:22:00.000-07:00

Finding the Surface Area of a Rectangular Prism

To find out the Surface area of a Rectangular Prism the first thing you have to do is make your object into a net so it looks like this:

(Surface Area : Surface area is the measure of how much exposed area an object has)

After Laying out your Rectangular Prism into a net you have to find the area of each shape. So to find the surface area of the whole object you have to find the area of each shape and add them together like this:

The Front and back Area = 8 x 4 = 32 cm ²
The Sides Area = 8 x 4 = 32 cm ²
The Bottom and the Top Area = 4 x 2 = 8 cm ²

Then you multiply each one by two becuase there are two of the same shape. It makes things easier.

32 x 2 = 64
32 x 2 = 64
8 x 2 = 16

Then you add all of those up and that gives you your surface area!

64 + 64 + 16 = 144 cm ²

Finding the Volume of a Rectangular Prism

To find the Volume of a Rectangular Prism is quit simple all you got to do is follow this formula:

Length x Width x Height = Volume

(Definition of Volume: The amount of space, measured in cubic units, that an object or substance occupies)

Now all you got to do is plunk in your numbers and do the math

Height x Length x Width = Volume
10 cm x 6 cm x 4 cm = 240 cm ³
(Since it is a three dimensional object we put cubed or ³)

Thats all you have to do :)

Marlon's Bob

2008-04-14T17:02:00.000-07:00

Surface Area and Volume

Surface Area

I learned to get the surface area of a 3 dimensional shape. Lets say you have a rectangular prism, you first need to make the prism into a net. Now you have to find the front area, the back area, the top area, the bottom area, and both of the sides areas. The easier way is to find the area of the top area then double it, then double the area of the top area and find the area of one side then double it since theres two of everything. So it would look like this,

Volume

I learned to get the volume you need the formula L x w x h = v. For example if you had a book flat on the table with the length=18 cm, the width=21, and the height=6 you would use this formula.

It is cm3 (or cubed) because it is a 3 dimensional shape.

Mary's bob

2008-04-14T16:16:00.000-07:00

Surface Area of a Rectangular Prism .
Surface area is the area of the surface on a rectangular prism .
Surface area = Length x height
= 2cm x 2cm = 4squaredcm
= 4squaredcm x 2 = 8squarecm
= 6cm x 2cm = 12squarecm
= 12squarecm x 4 = 48squarecm
Surface area = 48squarecm

The volume of a rectangular prism is how much space it takes up .
Volume of rp = length x width x height
length = 6cm
width = 2cm > 6 x 2 x 2 = 24squarecm *
height = 2cm
Volume of rp = 24squarecm

Dharyll's B.O.B.

2008-04-14T15:27:00.000-07:00

What I learned About Volumes and Surface Area

I learned that to get the volume you the to use a formula.

l x w x h =

3 x 3 x 3 = 27cm3

27 cubes = 27cm3

To get the Surface Area you also need a formula. You also have to add all the area of the square, top, bottom, sides, the back and the front.

Surface Area = 3 + 3 + 3 + 3 + 3 + 3 = 24 cm2

Jocelyne's B.O.B.

2008-04-14T13:26:00.000-07:00

Jocelyne's B.O.B.

SURFACE AREA:

The surface area is the area of the outside part of a shape. For a rectangular prism it would be the 2 sides, the top and bottom, and the front and back. A net is an easy way to show the rectangular prism's area .

The formula for this would be :

surface area = area top + area bottom + area side + area side² + area front + area back
OR
surface area = 2(L x W) + 2(H x L) + 2(H x W)
= 2(4cm x 2cm) + 2(2cm x 4cm) + 2(2cm x 2cm)
= 2(8cm) + 2(8cm) + 2(4cm)
= 16cm² + 16cm² + 8cm²
= 40 cm²

You can use the formula examples i showed you here to help you answer your own surface area question.

VOLUME:

The volume is the measurement of how much space the shape takes up. The answer is always cubed or in an exponent ³.The volume of a rectangular prism would look like this.

The formula for this would be:

volume = L x W x H
= 3cm x 2cm x 2cm

= 12 cm³
OR
volume = area of base x height

= 6cm² x 2cm
= 12cm³

Jeanine's BOB

2008-04-14T13:25:00.000-07:00

(2)=squared

Surface Area of a Rectangular Prism:
Surface area is the total area of the prism. The measurements from the net all added up.
Surface Area = lengthxheight
= 4 cm x 4cm = 16cm(2)
=8cmx4cm=32 cm (2)
Then you add them all up.
16+16+32+32+32+32= 160cm(2)

Volume of a Rectangular Prism:
LxWxH
(lengthxwidthxheight)
8x4x16 = 512 cm (2)
base = 96cm(2) ( you add up the three rectangles across the middle )
height = 16 cm(2)
96x16 - 1536
Volume = 1536 cm (2)

Robbie's Scribe

2008-04-10T15:23:00.000-07:00

Today, Mr. Harbec thought us how to find the volume of any prism.
(picture below)

(sorry picture a bit small)

Alleys Scribe

2008-04-10T09:23:00.001-07:00

Dhonells Scribe Post

2008-04-08T21:25:00.000-07:00

Today in class, Mr Jerema told us to find the surface area of various shapes. We were told to to measure the sides of 6 different shapes and make a "net" view of each shape. For the scribe, I was assigned 3 shapes to do .
My First Shape :

My Next Shape Was :

My Final Shape Was:

Those were the shapes I had to do for the scribe. Sorry I didn't post this earlier.

-Dhonell R G.

Chantal's Scribe

2008-04-08T16:45:00.000-07:00

Jordan's scribe.

2008-04-07T16:32:00.000-07:00

Today in class, Mr.J thought us how to find a surface area of a box. And the box we smashed it and opened it. Together there were 6 pieces in total(1 front, 1 back, 1 top, 1 bottom, and 2 sides.)

He thought us how to do find the area of the shape.

BubbleShare: Share photos - Powered by BubbleShare

Shawn's Pythagoras Post

2008-03-28T11:48:00.000-07:00

The Theorem is a2+b2=c2. This triangle here has two legs (a and b), and one hypotenuse (C). The theorem states that when you add a and b together, you get C. This makes a right angle triangle.

Coaster's pythagoras growing post

2008-03-28T11:47:00.000-07:00

Part 1 Describe what a Pythagorean Triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5. (Note: You need a picture, not simply text.)
Here is my picture:

Part 2
Using embeddable web 2.0, describe how to find the missing side of a Right Triangle using the Pythagorean Theorem, show how to solve both for a missing leg and the hypotenuse (note: you may use numerical examples ie. a=4 b=6 c=?)
-

Parts 2

Robbie's Pythagoras Growing Post

2008-03-28T11:46:00.000-07:00

Part One

the ones that are checked marked are the ones that go together.

Part Two:

Part Three:

You're locked out of your house and the only open window is on the second floor, 25ft above the ground. You need to borrow a ladder from one of your neighbours. There's a bush along side the edge of the house, so you'll have to place the ladder 10ft from the house. What length of ladder do you need to reach the window?

1.The Window is 25 ft above the ground.
2.The Bush is near the edge of the house and you will have to place the ladder 10 ft from the house.
3.You have lean the ladder on an angle to get it to the house.

Part Four:

Now that you have seen many Pythagorean problems, create your own word problem.

A little kid went to buy food from Foodland which was 9 miles north from his house and after he was done he went home. After he had enough money to buy a candy he loved so he rode his bike to the corner store to buy one which was 16 miles east from his house. If the little kid rode straight to the corner store after he shopped at Foodland, how far would he have road his bike?

Jordan's Pythagoras Growing Post

2008-03-27T18:53:00.000-07:00

Part 1

Describe what a Pythagorean Triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5.

What is a Pythagorean Triple?
-A Pythagorean Triple is a theory that states that the two side lengths of a right angle triangle added together equals the hypotenuse. A² + B² = C²

When you look at the chart, you have to find which two perfect squares added together will equal another perfect square.You can find that 6² + 8² = 10².

Part 2

Part 3

You're locked out of your house and the only open window is on the second floor, 25ft above the ground. You need to borrow a ladder from one of your neighbors. There's a bush along side the edge of the house, so you'll have to place the ladder 10ft from the
house. What length of ladder do you need to reach the window?

Part 4

The Celtics on a road trip. First they're at Dallas, then they drive 8 miles down the road to Houston, then after they go to San Antonio. Finally they need to go back to Dallas from San Antonio. How long is the trip from San Antonio to Dallas?

2008-03-26T09:22:00.000-07:00

Joelle's Pythagoras Growing Post

Part 1
A Pythagoras Triple is where three perfert squares connect to make a right triangle.

A and B are the legs of the triangle and when you add both them together are added together they equal c which is the hypotenuse of the triangle. A²+B²=C² is an equation to find C². Part 2

Part 3

Mr. H jumped into a canoe to cross a river that runs east to and is 20m wide. The current carried him downstream 8m before he reached the other side. How far did he traval in total?

Part 4

If you throw a ball on a wall that is 10m high, you are 6 meters away, and you release the ball 3 meters away from the ground. How far do you have to throw the ball to get it to the top of the wall?

2008-03-26T08:18:00.000-07:00

Part 1:Describe what a Pythagorean Triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5. (Note: You need a picture, not simply text.)

The Pythagorean Theroem is: A2 + B2 = C2. so this Pythagorean is like: The Left square is A2, the bottom square is B2, and C2 is the square on the right. And all of this shows a right triangle. So thats the Pythagorean Triple and some of this tells about the Theroem

Jaryl's Pythagoras Growing Post

2008-03-24T18:31:00.000-07:00

Part One

Describe what a Pythagorean Triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5.

What is a Pythagorean Triple?
A Pythagorean Triple is a theory that states that the two side lengths of a right angle triangle added together equals the hypotenuse. A² + B² = C²

Perfect Square Chart

When you look at the chart, you have to find which two perfect squares added together will equal another perfect square.You can find that 6² + 8² = 10².

Part 2
Using embeddable web 2.0, describe how to find the missing side of a Right Triangle using the Pythagorean Theorem, show how to solve both for a missing leg and the hypotenuse (note: you may use numerical examples ie. a=4 b=6 c=?)

BubbleShare: Share photos - Powered by BubbleShare

Part 3
You're locked out of your house and the only open window is on the second floor, 25ft above the ground. You need to borrow a ladder from one of your neighbours. There's a bush along side the edge of the house, so you'll have to place the ladder 10ft from the house. What length of ladder do you need to reach the window?

What you know from this.

1. The Window is 25 ft above the ground.

2. There is a bush that is near the edge of the house and you will have to place the ladder 10 ft from the house.

3. You have to lean the ladder on an angle to get it to the house

Part 4

A new zoo has opened near Polo Park and the Sargent Park students will be able to make it there by school bus for their fieldtrip. They have to travel 6 km to get to Polo Park and then to get to the new zoo they need to travel 8 more km to get to the zoo. On the way back they find a oneway road leading right back to sargent park but now they want to find out how many km it would take them. How many km would it take them from this road to the school.

Liezl's Pythagoras Growing Post

2008-03-23T18:20:00.000-07:00

Part 1.

What is a Pythagorean Triple ?

A pythagorean triple uses 3 perfect squared numbers to answer this question a²+b²=c²

a and b are the legs of the triangle and when their numbers are added together they equal c which is the hypotenuse of the triangle.

An example of a pythagorean triple :

Part 2.

Part 3.

LeFrog
Lefrog stands 1.5 meters from a wall where a fly is 2 meters up. if Lefrog's tongue comes out of his mouth 70 cm from the ground, how far does his tongue have to stretch to eat the fly ?

First you use the info they gave us:

→ lefrog is 1.5 meters from the wall
→ the fly is 2 meters up
→ his tongue can stretch 70 meters

Here is a picture of what it might look like:

Part 4.
Bubbles, Blossom and Buttercup were playing tag outside and Bubbles was it. Blossom was 7m away from Buttercup. Buttercup was 6m away from Bubbles. How far was Bubbles away from Blossom so that she can tag Blossom?

Carmen's Pythagoras Growing Post

2008-03-23T17:33:00.000-07:00

PART 1

Describe what a pythagorean triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5.

PART 2

Using embeddable web 2.0, describe how to solve both for a missing leg and the hypoteneuse.(you may use numerical examples a=4 b=6 c=?)

BubbleShare: Share photos - Powered by BubbleShare

PART 3

PART 4

Create a word problem:

Timothy was at the waterpark. He wanted to go on the BIG KAHUNA. It was 6m tall and 20m wide. How far does Timothy have to slide?

Katarina's Pythagoras Growing Post

2008-03-23T12:52:00.000-07:00

Part One

Task: Describe what a Pythagorean Triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5.

What is a Pythagorean Triple?
A Pythagorean Triple is a theory that states that the two side lengths of a right angle triangle(a & b) added together equal the hypotenuse(c). A² + B² = C²

Perfect Square Chart

When you look at the chart, you have to find which two perfect squares added together will equal another perfect square.
You can find that 6² + 8² = 10².

Part Two

Task: Using embeddable web 2.0, describe how to find the missing side of a Right Triangle using the Pythagorean Theorem, show how to solve both for a missing leg and the hypotenuse (note: you may use numerical examples ie. a=4 b=6 c=?)

Part Three

Question: You're locked out of your house and the only open window is on the second floor, 25ft above the ground. You need to borrow a ladder from one of your neighbours. There's a bush along side the edge of the house, so you'll have to place the ladder 10ft from the house. What length of ladder do you need to reach the window?

What do you know?

>The Window is 25 ft above the ground

> There is a bus that goes out 10 ft on the ground

>You have to lean the ladder on an angle to get it to the house

>You're trying to figure out how long the ladder is

Picture:

Part Four

You are stuck in a hole with an unconscious cannibal. You have to find a way to escape before the cannibal wakes up. The hole is 8m deep, so there’s no way you can climb out by yourself, so you look around and notice that there is a ladder laying on the ground beside you. You can’t lean the ladder directly against the wall because there is a pit of acid that is 4m long around the whole pit, kind of like a mote. So you have no choice but to lean the ladder 4m back. The ladder is long enough for you to get to the top of the hole. How long is the ladder?

anthony's scribe

2008-03-18T21:40:00.000-07:00

Cedric's Pythagoras Growing Post

2008-03-17T16:29:00.000-07:00

Part 1:
Describe what a Pythagorean Triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5. (Note: You need a picture, not simply text.)

A Pythagorean Triple is that 2 side lengths (also called legs- A and B) added together
equals the hypotenuse (C). Also they use perfect squares to figure the hypotenuse.
(Means no decimal answers, just a whole number) It satisfies the solution:
a squared(a2) + b squared (b2) = c squared (c2)

A Pythagorean Perfect Square Chart.

Part 2:
Using embeddable web 2.0, describe how to find the missing side of a Right Triangle using the Pythagorean Theorem, show how to solve both for a missing leg and the hypotenuse (note: you may use numerical examples ie. a=4 b=6 c=?)

First we take 2 numbers (a=6 and b=8) and solve it. Take both a and b and make it
a squared + b squared =c squared. In numbers: 6 squared + 8 squared = c squared
6 x = 36 and 8 x 8 = 64. Add them together because it has to satisfy a squared + b squared =c squared.
36 + 64 = 100. 100 goes into 10. So C = 10 and C squared equals 100.

Here is a picture on what it looks like.
I used a picture cuz my bubbleshare and any other embbed thingies wont work. Ill change it when they start working. >.>

Part 3:
Explain how to solve a Pythagoras word problem. Use one of the examples we covered in class
(Worksheet A, B, LeFrog or Bonus Problem).

You're locked out of your house and the only open window is on the second floor, 25ft above the ground. You need to borrow a ladder from one of your neighbours. There's a bush along side the edge of the house, so you'll have to place the ladder 10ft from the house. What length of ladder do you need to reach the window?

What you already know.

-House to the second floor window is 25 ft.

-Ladder is 10ft from house.

Pythagoras Growing Post

2008-03-17T16:27:00.000-07:00

Part 4: Now that you have seen many Pythagorean problems, create your own word problem.

My word problemo

My mom told me to get some cups from Wal-Mart. Wal-Mart is 12 km east from my house. Suddenly i got a phone call and she told me to get milk and SafeWay which is 10 km south from Wal-Mart. Now I had to go home. When i got home, i asked myself how much i walked from SafeWay to my house i guessed 99 km. How much did i walk from SafeWay to my house? was my normal guess right or wrong?

Part 1:
Describe what a Pythagorean Triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5. (Note: You need a picture, not simply text.)

This is a picture of a Pythagorem Triple. A pythagorem triple says that the legs ( a and b) and the hypotenuse (c) of a right triangle follows the equation, a2 + b2 = c2. so if you add the legs together, you'll get the hypotenuse. This also shows that if you add the small square with the medium sized square, you'll get the biggest square. It uses perfect squares to find out the hypotenuse.

Proof

Perfect Square Chart

Here is the next pythagoream triple. It was quite easy to find out after you look at the perfect sqaure chart.

Part 2
Using embeddable web 2.0, describe how to find the missing side of a Right Triangle using the Pythagorean Theorem, show how to solve both for a missing leg and the hypotenuse (note: you may use numerical examples ie. a=4 b=6 c=?)

BubbleShare: Share photos - Powered by BubbleShare

Part 3
Explain how to solve a Pythagoras word problem. Use one of the examples we covered in class (Worksheet A, B, LeFrog or Bonus Problem).

I am going to explain how we solved LeFrog. First we had the question. Lefrog stands 1.5 meters from a wall where a fly is 2 meters up. If Lefrog's tongue comes out of his mouth 70 cm from the ground, how far does his tongue have to stretch to eat the fly?
LeFrogs tongue had to stretch 1.98 m to eat the fly.

To figure out this problem, you first look at the question and find out the lengths of the triangle to find the hypotenuse. The lengths of our triangle was 1.5 and 1.3. It was 1.3 on one side because of the calculations i did on the top left corner. We then had to find out the length of LeFrogs tounge. We then used our formula ( a2 + b2 = c2 ). We used this formula, when we got to c, we used our calculators to find the sqaure root of the number. Finally, we found the answer to how far LeFrogs tounge had to stretch to eat the fly.

PART 4 ABOVVE !!

Jocelyne's Scribe Post

2008-03-17T15:36:00.000-07:00

In today's class we watched a movie with frogs. Mr J gave us a word problem that we wrote in our Pythagoras booklet.

here is the question:

Lefrog stands 1.5 meters from a wall where a fly is 2 meters up. if Lefrog's tongue comes out of his mouth 70 cm from the ground, how far does his tongue have to stretch to eat the fly ?

His tongue had to stretch 1.98 m to eat the fly.
>> click for bigger picture.

What we did to figure out the answer was we gathered our information about the triangle such as the lengths of the the sides a and b to figure out the hypotenuse c which was the tongue of Lefrog. We then made our formula for the answer so we found out the numbers of the square roots of a and b and added them to figure out c. When we figured out c we had to find the square root of it and we used calculators for that so it would be easier and after we had our answer for c and we figured out how long Lefrogs tongue had to stretch.

Pythagoras Growing Post

2008-03-16T19:39:00.000-07:00

A Pythagoras triple is like a mathematical equation which consists of a² + b² = c². You will have 3 perfect squares and if you add them together you will get a perfect square number. In the middle of the Pythagorean triple in this example, is a right angle triangle (90 degree angle). Where one side or square has a², another b², then c². Here we used the perfect square chart where 6² + 8² = 10². You can also use 3² + 4² = 5².

How to Find The Missing Side of A Right Triangle
Using the Pythagorean Theorem

#1
Well first we have to find out what are our sides. Here the right angle always points to the hypotenuse or c which is 10. a= 4 and we have to find out what b is. So what we have to do is make sure we have a formula to start off with then we insert our numbers 4² +b² = 10². Now we have to square the numbers, 4² become 16 and 10² becomes 100. To find b we have to go 16+16 = 100-16. So b² = 84. The square root of 84 will equal b which is 9.16. b=9.16
----------------------------------------------------------------------------------------------
#2
First start off with a formula. a² + b²= c². Then we punch in our digits 4² + 7² = c².Now we have to square the numbers 16 + 49 = 65. To find c we have to find the square root of 65 which is 8.06.

Lefrog

question: Lefrog stands 1.5 meters from a wall where a fly is 2 meters up. if Lefrog's tongue comes out of his mouth 70 cm from the ground, how far does his tongue have to stretch to eat the fly ?

One of the word problems we had to do in class was lefrog. We had to find out how far lefrog's tongue had to stretch to reach the fly. The question was just like a find the missing side question where you have to find out c. Although you have to convert cm to m. Which equals 0.7m then subtract that from 2m. Then we have to find a right triangle and draw it out with 1.3 as a and 1.5 as b and then we had to find c. After we squared the numbers we got 1.69 + 2.25 = 3.94 m . c² = 3.94 . The square root of 3.94 = c or 1.98.

Word Problem

Mr. Triangle is traveling to Mr . circles house on a car . He isn't a very smart fellow either. So far he drove 6m east then turned south 9m. After he has hit the end of 9m he has to go for a pit stop and finds out that he might not have enough gas to reach mr circles house. How far does he need to travel?

Mr. Triangle has to travel 10.81m to travel to Mr. circle's house.

Pythagoras Growing Post

2008-03-16T15:31:00.000-07:00

What is a Pythagorean Thereom

A pythogorean thereom is three unknown numbers: a , b and c. They obey the following relationship a2 + b2 = c2. A & B are both legs and C is the hypotenuse.

Perfect Square Chart

Part 2
Using embeddable web 2.0, describe how to find the missing side of a Right Triangle using the Pythagorean Theorem, show how to solve both for a missing leg and the hypotenuse (note: you may use numerical examples ie. a=4 b=6 c=?)

Part 3:
Explain how to solve a Pythagoras word problem. Use one of the examples we covered in class (Worksheet A, B, LeFrog or Bonus Problem).

Lefrog stands 1.5 meters from a wall where a fly is 2 meters up.
Lefrog's tongue comes out of his mouth 70 cm from the ground
how far does his tongue have to stretch to eat the fly?
LeFrogs tongue stretched 1.98 m to eat the fly.

A²= 1.3²
B²= 1.5²
C²= ???

A² + B² = C²
1.3² + 1.5² = C²
1.69 + 2.25 = C²
C² = 3.94
/c²=/3.94
/3.94=1.98

Part 4:
Now that you have seen many Pythagorean problems, create your own word problem.

Pythagoras Growing Post

2008-03-16T15:22:00.001-07:00

Part 1.
Describe what a Pythagorean Triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5. (Note: You need a picture, not simply text.)

What is a Pythagorean Triple ?

A pythagorean triple is a triangle that has two legs and one hypotenuse. The legs are labelled as a and b and the hypotenuse is c. The theory of the pythagorean triple is when you add the side lengths a and b it equlas c. The equation would be a² + b² = c² .

An example of a Pythagorean Triple using the perfect square chart:

Part 2.
Using embeddable web 2.0, describe how to find the missing side of a Right Triangle using the Pythagorean Theorem, show how to solve both for a missing leg and the hypotenuse (note: you may use numerical examples ie. a=4 b=6 c=?)

BubbleShare: Share photos - Powered by BubbleShare

Part 3.

Explain how to solve a Pythagoras word problem. Use one of the examples we covered in class (Worksheet A, B, LeFrog or Bonus Problem).

Lefrog stands 1.5 meters from a wall where a fly is 2 meters up. if Lefrog's tongue comes out of his mouth 70 cm from the ground, how far does his tongue have to stretch to eat the fly ?

First gather your information that you have now :

- lefrog is 1.5 meters from the wall
- a fly is 2 meters up the wall
- his tongue comes out of his mouth 70 cm from the ground

It should look something like this :

Lets start with the formula, it would be a² + b² = c². once you got the formula you start to fill in your formula with the information that you have already. a² + b² = c² now turns into 1.3m² + 1.5m² = c². With 1.3m² + 1.5m² = c² you have to square off the squared numbers to add it and so it equals c². Multiply the base numbers by itself.1.3m x 1.3m = 1.69m, 1.5m x 1.5m = 2.25m. Now you add those numbers together to equal c². 1.69m + 2.25m = 3.94m . Now you know what c² equals you just have to find the square root of it. You have to use a calculator for this so you just punch in 3.94 and press the square root button and that gives us 1.98. So now our answer is LeFrog has to stretch his tongue 1.98 m to eat the fly.

PART 4.

Now that you have seen many Pythagorean problems, create your own word problem.

Jim was riding his bike one sunny day and he rode down the block 8 meters until he hit a bush where a dog chased him to a parking lot . If the parking lot was 5 meters away from his house how far did the dog chase Jim from the bush to the parking lot ?

Jessica B's Scribe Post

2008-03-16T12:34:00.000-07:00

4 squared + 3 squared = 5 squared because 3 squared equals 9 and 4 sqaured equals 16 so when you add 9 and 16 it equals 25 and 25 is equaled to 5 squared.

BubbleShare: Share photos - Powered by BubbleShare

Pythagoras Growing Post

2008-03-16T11:49:00.000-07:00

Part 1

Describe what a Pythagorean Triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5. (Note: You need a picture, not simply text.)

This is a pythagorean triple. It uses perfect square numbers to satisfy a2 + b2 = c.

Part 2

Using embeddable web 2.0, describe how to find the missing side of a Right Triangle using the Pythagorean Theorem, show how to solve both for a missing leg and the hypotenuse (note: you may use numerical examples ie. a=4 b=6 c=?)

BubbleShare: Share photos - Powered by BubbleShare

Part 3

Explain how to solve a Pythagoras word problem. Use one of the examples we covered in class (Worksheet A, B, LeFrog or Bonus Problem).

LeFrog

Lefrog stands 1.5 metres from a wall where a fly is 2 metres up. If Lefrog's tongue comes out of his mouth 70 cm from the ground, how far does his tongue have to stretch to eat the fly ?

We needed to find what c was so we first change 700 cm into 0.7m by dividing 100 into 700. We then needed to subtract 0.7 from 2m to get 1.3. With a formula a2 + b2 = c2 we plugged in the numbers so now it was 1.3 2 + 1.5 2 = c2. Then got their squared number 1.69 + 2.25 = c2. Then we added them together to get c2 which is 3.94. Since we had to find c not c2 we found the square root of 3.94 which is 1.98.

Part 4

Now that you have seen many Pythagorean problems, create your own word problem.

A man named Johny went to buy groceries from Wal-mart which was 9 miles north from his house and after he was done he went home. Later Johny had enough money to buy a new laptop so he drove to Best Buy to buy one which was 16 miles east from his house. If Johny drove straight to Best Buy after he shopped at Wal-mart, how far would he have drove?

Kate's Pythagoras Growing Post

2008-03-16T11:45:00.000-07:00

KATIE'S PYTHAGORAS GROWING POST

"Part One"

Task: Describe what a Pythagorean Triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5.

What is a Pythagorean Triple?

A Pythagorean Triple is a theory that says the two side lengths of a right angle triangle added together = the hypotenuse. The equation for that would be:

A² + B² = C²

To find the next Pythagorean Triple you look at your perfect Square chart to figure out which will work.

When you look at that you have to decide which two perfect squares added together will equal to another perfect square.

Right away you can tell that 6² + 8² = 10²

Then you can draw it out.

You can also show it this way:

A² + B² = C²
6² + 8² = 10²
36 + 64 = 100

It all means the same thing.

"PART TWO"

Task: Using embeddable web 2.0, describe how to find the missing side of a Right Triangle using the Pythagorean Theorem, show how to solve both for a missing leg and the hypotenuse (note: you may use numerical examples ie. a=4 b=6 c=?)

My Bubble Share

BubbleShare: Share photos - Play some Online Games.

" Part Three "

Question: You're locked out of your house and the only open window is on the second floor, 25
ft above the ground. You need to borrow a ladder from one of you rneighbours. There's a bush along side the edge fo th ehouse, so you'll have to place the ladder 10ft from teh house. What length fo the ladder do you need to reach the window?

So first you should lay out the information you know.
>The Window is 25 ft above the ground
> There is a bus that goes out 10 ft on the ground
>You have to lean the ladder on an angle to get it to the house
>You're trying to figure out how long the ladder is

Then Try to Draw it out... Like this...

You probably noticed its is a right triangle. After noticing that you can use the Pythagorean theorem to solve what C is. ( C is always the side the right angle is pointing to with its corner.) Since you know that A² + B ² = C ² you plug in the info you know already

The Theorem
A² + B² = C²

Then you put the numbers in you know. A² & B² can be swapped it doesn't matter what number is where. I always put the smaller number in A.
10² + 25² = C²

Then you have to square the numbers as the theorem states. All you have to do is take the base number and multiply itself by itself.
10 x 10 = 100
25 x 25 = 625

Then you put those numbers into your equation.
100 + 625 = C²

Now all you got to do to find out what C² is is add the two numbers together.
100 + 625 = 725

That means that C² is 725
C² = 725

Now you have to find the square root of that number to find out how long the ladder is.
The square root of 725 is :

Fraction :

" Part Four "

Task: Now that you have seen many Pythagorean problems, create your own word problem.

My Word Problem

>>Giggle the snake was slithering through the park one day to meet up with his friend Shout. They started to argue about who was longer. Giggle said he was so long that he could reach all the way from the edge of the tree stump to the sticker half way up the side of the outhouse. If the outhouse was 8 feet tall and the stump was 6 feet away from the outhouse how long would Giggle have to be to be able to reach from the bottom edge of the tree stump to the sticker on the side of the outhouse?

ANSWER:

(Highlight to see text. It's in white so you don't see it until you want to)

This is all in words becuase I didn't know how to hide pictures.

If the outhouse is 8 feet tall & the sticker was half way up that means the sticker is 4 Feet high. Now you know that one of the legs is 4. The right angle is where the ground meets the outhouse.

To the edge of the tree stump is 6 Feet. To find the hypotenuse or how long Giggle's is all you got to do is follow this:

A² + B² = C²

4² + 6² = C²

16 + 36 = C²

C² = 52

The square root of 52 is 7 3/15 or 7 1/3 OR 7.21

THATS ALL FOR NOW :)

Pythagoras Growing Post

2008-03-14T16:00:00.000-07:00

PART 1.

Describe what a Pythagorean Triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5. (Note: You need a picture, not simply text.)

What is a Pythagorean Triple ?

A pythagorean triple is an equation of a² + b² = c ² . A and b are the the legs of a right angled triangle and when the lengths of the legs are added together they equal the hypotenuse which is c. İt uses only 3 perfect square numbers for this question
a² + b² = c²

An example of a pythagorean triple using the perfect square chart:

A² + B² = C²

PART 2.

Using embeddable web 2.0, describe how to find the missing side of a Right Triangle using the Pythagorean Theorem, show how to solve both for a missing leg and the hypotenuse (note: you may use numerical examples ie. a=4 b=6 c=?)

BubbleShare: Share photos - Powered by BubbleShare

PART 3 :
Explain how to solve a Pythagoras word problem. Use one of the examples we covered in class (Worksheet A, B, LeFrog or Bonus Problem).

Lefrog stands 1.5 meters from a wall where a fly is 2 meters up. if Lefrog's tongue comes out of his mouth 70 cm from the ground, how far does his tongue have to stretch to eat the fly ?

This would be the information they gave us in the question:
[ Lefrog stands 1.5 meters from the wall
[ a fly is 2 meters up the wall
[ his tongue comes out 70cm from the ground

It would then look like this . .

The formula for this would be:
a² + b² = c²

You would then fill in the a², b², or c² numbers that you know into the formula, and in the question they only gave us the a and b sides.
1.3m² + 1.5m² = c²

Now you have to square the numbers off by multiplying the base numbers by itself.
1.3m x 1.3m = 1.69m
1.5m x 1.5m = 2.25m

The next part is the area of the squares sides above, so when you add these two areas together it will equal the area of c².
1.69m + 2.25m = c²

So now you add these two together to get the answer for c².
1.69m + 2.25m = 3.94m

Since now we know what c² is you have to find the square root of it by using a calculator. You put in 3.94 and then press the square root button and now you have the the answer to the question.
c² = 3.94m
square root of c² = 1.98m

Lefrogs tongue has to stretch 1.98m to eat the fly.

PART 4.

Now that you have seen many Pythagorean problems, create your own word problem.

Billy-bob is playing basketball at the court, the basket is 8 meters high. Billy-bob is at the foul line which is 10 meters away from the basket. How high does Billy-bob have to shoot the ball to get a basket?

Jasmine's third Growing Post

2008-03-14T14:55:00.000-07:00

Describe what a Pythagorean Triple is and use your perfect square chart from 1 to 10 squared to find another one other than 3,4,5

What is a Pythagorean Triple?

The Pythagorean Triple is A squared+B squared =C suquared. It uses the perfect square chart numbers to satisfy a squared+B squared=C squared.

Here is what a pythagorean Triple is:

2:Describe how to find the missing side of a right triangle using the Pythagorean Theorem, show how to to solve for both for a missing leg and the hypotenuse?

http://www.bubbleshare.com/album/346224/mini?height=238&gizmo_player=true&border=true&size=268x201&width=280" width="280" height="238"> BubbleShare: Share photos - Find great Clip'>http://clip-art.kaboose.com/index.html">Clip Art Images.

Part 3:Explain how to solve a Pythagoras word problem. Use one of the examples we covered in class?

Mr. h. jumped into a canoe on the North Bank of a river that is 20m wide. He crossed to the South side. When he got to the other side, he discovered that the current carried him 8 m West. How far did he travel in total?

a2+b2=c2

20 squared+8 squared=c2

400+64=c2

400+64=160000

c2= square root of 160000

c=400

Part 4: Betty wants to go buy ice cream, go tothe library to return books and go to work in two hours. The ice cream store is 10 blocks away and the library is 5 blocks away and go to work. She can't drive and it's hard to catch a bus where she lives. How many more blocks does she have to go to get to work? She has two hours before she starts working.

Mary's Scribe

2008-03-13T18:41:00.000-07:00

The Pythagorean Theorem

Today in math class, we learned what the pythagorean theorem was all about. It states that the legs (a and b) and the hypotenuse ( c) obey the following relations a2+b2=c2 . We were also taught of what a pythagorean theorem was . It's A squared + B Squared = C Squared and it uses perfect square numbers, as shown in the picture below .

Mr. Jay also gave us a problem that we had to solve. The problem was "The egyptians used a rope with 12 knots that were evenly spread apart to make right angles. They knew that the angle opposite the longest side was always square." We were asked to make a right angle triangle with 12 knots . This is what we did .

We also started another flap, and called it PROOF NUMBER ONE . Under this, we cut out dotted paper, with the areas of 3 squared, 4 squared and 5 squared, and arranged them into a pythagorean triple. This proved our statement .

Mary's Pythagoras Growing Post

2008-03-13T18:00:00.000-07:00

PART ONE
Describe what a Pythagorean Triple is and use your perfect square chart from 1 squared to 10 squared to find another one other than 3,4,5.

WHAT IS A PYTHAGOREAN TRIPLE ?!?!
The Pythagorean Triple is A squared + B Squared = C Squared. It uses perfect square numbers to satisfy this.

Here is an example of another pythagorean triple using the perfect square chart from 1 - 10.
6 squared + 8 squared = 10 squared.

( a/36 + b/64 = c/100 )

PART TWO

PART THREE

Explain how to solve a Pythagoras word problem. Use one of the examples we covered in class (Worksheet A, B, LeFrog or Bonus Problem).

You're locked out of your house, and the only open window is on the second floor, 25 feet above the ground. You'll need to borrow a ladder from one of your neighbours. Also, there's a bush along the edge of the house, so you'll have to place the ladder 10 feet away from the house. What length of ladder do you need to reach the window?

PART FOUR

Angelo was a carpenter . He was hired to make a stairhandle for some stairs, that were 2 meters from the ground, and 3 meters off the wall. How long does the stair handle have to be ?

ANSWER : the stair handle has to be 3.60 meters long .

Jessica Q's Pythagoras Growing Post

2008-03-13T17:31:00.000-07:00

What is a Pythagorean Triple?
A Pythagorean Triple is 3 perfect unknown numbers used to satisfy:
a² + b² = c²

Example of a Pythagorean Triple:
using 1² - 10² on the perfect square chart

a² + b² = c²

6² + 8² = 10²

(6² = 6x6, 8² = 8x8, 10² = 10x10)

a² = 36 (6x6)
b² = 64 (8x8)
c² = 100 (10x10)

Part 2:
Using embeddable web 2.0, describe how to find the missing side of a Right Triangle using the Pythagorean Theorem, show how to solve both for a missing leg and the hypotenuse (note: you may use numerical examples ie. a=4 b=6 c=?)

Part 3:
Explain how to solve a Pythagoras word problem. Use one of the examples we covered in class (Worksheet A, B, LeFrog or Bonus Problem).

Worksheet A:
You’re locked out of your house and the only open window is on the 2nd floor 25 feet above the ground. You need to borrow a ladder from one of your neighbors. There’s a bush along the edge of the house, so you’ll have to place the ladder 10 feet from the house. What length of the ladder do you need to reach the window?

What I did in this word problem was, I drew a triangle which also showed the house, the ladder, and the ground. The ground and the house were the legs and the ladder was the hypotenuse. Since the question asks us to find out the length of the ladder, I used the theorem, “a²+b²=c²”. The given numbers so far were “10² feet” and “25² feet”. 10² and 25² are the legs of the triangle. After, I had to find the square root of these numbers. (10²=100 and 25²=625) I added up the numbers 100 and 625 to find out was c was. (625+100=725) Now that I had my answer, I found out what the square root of 725 was, which was 26.93². 26.93² is the length of the ladder needed to reach the window of the house.

Part 4:
Julie drives from her house to work. She starts at her house, drives 9 km south, then 12 km east to her work. How far is Julie's work from her house?

Jeanine's Pythagoras Growing Post

2008-03-12T15:32:00.000-07:00

Part ONE.
The Pythagorean Triple is A² + B² = C². It uses perfect square numbers to satisfy this.

Here's an example. 6²+ 8²= 10²

6² = 36 +8²= 64 = 10²= 100
Part TWO.
Finding the Missing Side
Finding the Missing Leg

BubbleShare: Share photos - Find great Clip Art Images.

Finding the Missing Hypotenuse

BubbleShare: Share photos - Play some Online Games.

Part THREE.
Question: You're locked out of your house and the only open window is on the second floor, 25 ft above the ground. You need to borrow a ladder from one of your neighbours. There's a bush along side the edge fo the house, so you'll have to place the ladder 10ft from the house. What length fo the ladder do you need to reach the window?

First of all you figure out what you already know.
- The only open window is 25 ft above the ground.
- There's a bush so the ladder has to go 10 ft out from the house.
- The ladder will be leaning against the house
- You need to know how long a ladder you need.
Maybe draw a picture.

This is actually a right triangle, and the ladder would be the hypotenuse. So why not use what you already know? A² + B² = C²
10²+ 25² = c²
10x10=100
25x25=625
100+626=c²
100+625=725
This means that c²= 725.
Next all you have to do is find the square root of 725.

Part FOUR.
Create your own word problem.

You have to climb out of a hole 7m deep. There is a giant pit of boiling lava 9m from the hole. Your friend will throw a rope from the edge for you, but can only throw it out over the pit of lava. How long does the rope have to be so that it will reach you and you can climb out?

Tim's Pythagoas Growing Post

2008-03-12T15:14:00.000-07:00

What is a Pythagorean Triple?

A pythagorean Triple is 3 perfect numbers used to satisfy the problem, a2+b2=c2.

Example of a Pythagorean Triple (using 1-10 on the perfect square chart)

a2+b2=c2

6 2+8 2=c2

6 2+8 2=10 2

36+64=100

Lukes Pythagoras

2008-03-12T14:03:00.000-07:00

part1

The Pythagorean Triple is A squared + B Squared = C Squared. It uses perfect square numbers to satisfy this.

part 3
Question: You're locked out of your house and the only open window is on the second floor, 25ft above the ground. You need to borrow a ladder from one of your neighbours. There's a bush along side the edge of the house, so you'll have to place the ladder 10ft from the house. What length of ladder do you need to reach the window?

Kate's Scribe

2008-03-11T20:03:00.000-07:00

" I AM A RIGHT ANGLE TRIANGLE "

>> Today in Math class we learned all about Right angle triangles. We learned how to find the area of a triangle and we also learned all about the names of each side. There was a lot of information we took in. For example One whole circle is 360 °. You can split that up into four quandrants and get four 90° angles. The hypotenuse is always the line opposite of the right angle. The two legs are the lines that meet up to form the 90° angle. We also learned that to find the area of a triangle you go A X B /2. The reason for that is because to find out the area fo a rectangle would be A X B ( width multiplied by length) But a right triangle is only half of a rectangle. So A x B = the area of a rectangle A x B / 2 equals the area of a triangle simple as that :)

Charity's MathWork

2008-02-19T20:19:00.000-08:00

Fractions are Relations
Fractions Represent Division

Unit Fraction

Dharyll's Scribe Post

2008-02-06T15:29:00.000-08:00

1. What's __ ÷ __?

2. How many groups of __ are in __?

3. Find a way to ge the answer!

Here the ways I got the answer. Check my Voicethread for the 3 ways

That's my three ways on how to get the answer, so far,
on how to get the answer for dividing mixed fractions.

Lukes Scribe

2008-02-05T20:16:00.000-08:00

Dhonell's Scribe

2008-02-05T19:01:00.000-08:00

Well heres my Scribe guys and girls. its pretty intense. id like to thank liezl for telling me to make a voicethread, my mom telling me to do my homework, harbeck for giving me the homework, etc. etc. etc. i love you guys .

here it is.

Liezl's Scribe.

2008-02-04T18:55:00.000-08:00

LIEZL'S SCRIBE .

Today, we learned how to divide fractions by using examples with paint cans.

First, we looked at the question and asked ourselves..

EXAMPLE:
* How many groups of 2 are in 5?

OR
* How many times does 1/8 go into 2/5?

We also solved the questions using ratio tables and drawing pictures to help us out.
Just like in the voicethread I had created. (:

Jordan's Scribe.

2008-02-02T20:59:00.000-08:00

some of the answer's i put were in pictures and others were in words.
The 4 fours .

1.) how to get to zero, with 4 fours.

2.) how to get to 1

3.) how to get to 2.

4.) how to get to 3.

5.) how to get to 4

6.) how to get to 5

(4 + (4 X 4)) divide 4 = 5

first you do the ones in the bracket ( 4X4) then, add 4 to the answer to(4X4) then divide the answer by 4, then youll get 5.

7.)how to get to 6

4 + ((4 + 4) divide 4) = 6

First you do the one in the bracket 4+4, then divide the answer by 4, then add it agian by 4 and youll get 6

8.) how to get to 7

(44 divide by 4) - 4 = 7

to do this question , first you do the question in the brackets () so, its 44 divided by 4, and that should give you eleven , and then you subtract 11 by 4, and that would give you 7.

9.) how to get to 8

4 + 4 + 4 - 4 = 8

this question is easy to do, first you just add 4 and 4 and 4 and then subtract 4 and that would equal 8.

10.) how to get 9.

4 + 4 + (4 divided by 4) = 9

first do the question in the brackets 4 divided by 4, that should give you 1, and then add 4 , then 4 agian, that should give you 9 .

Kate's Scribe

2008-01-31T05:39:00.001-08:00

Chantal's Scribe Post - Jan 30

2008-01-30T17:37:00.000-08:00

FRACTION WORD PROBLEMS - SCRIBE

- -CHANTAL

Charity's Scribe

2008-01-30T16:51:00.000-08:00

1.) There are 24 hours in a day and scientists tell us that we should sleep for 3/8 of a day. How much time should we spend sleeping?

This is what I did for number 1:

2.)The National History Museum has collected 125 dinosaurs. George has collected 3/5 of of this amount. How many dinosaurs has George collected?

This is what I did for number 2:

3.) Mr.Murrin is 160cm tall and his brother Tom is 7/8 as tall as him. How tall is Tom?

This is what I did for question 3:

Jocelyne's Scribe

2008-01-24T17:06:00.000-08:00

Math Test

QUESTION ONE

In question one I first made common denominators to add the fractions up.

The common denominator i used was 15 so to get the denominator of 15 i multiplied 1/5 by 3 and got 3/15 and for the other fraction i multiplied 2/3 by 5 and got 10/15. after i added the 2 fractions and got 13/15. And then i added up the whole numbers together which gave us 4 then i added up 4 plus 13/15 and gave me 4 13/15.

QUESTION TWO

In this question i made common denominators and the common denominator i used was 12. After i made common denominators i took the 2 mixed numbers and made them into improper fractions and then subtracted them both. the answer was an improper fraction so i simplified it to 1 11/12 .

QUESTION THREE

In this question i switched the numerators around and reduced the 4/8 then just multiplied the 2 fractions. The answer i got was 7/10.

QUESTION FOUR

In this question I made the fractions into improper fractions then switched the numerators. After switching the numerators i reduced the fraction into whole numbers. I multiplied the whole numbers together and it gave me the answer of 12.

Jessica Q's Scribe Post

2008-01-23T15:45:00.000-08:00

Today in math class ...

We learned an easier way to multiply mixed fractions. (:

To multiply mixed fractions, you must:

Change the mixed fraction into an improper fraction
Multiply Numerators
Multiply Denominators
Simplify Fractions

Here are some examples of what we did to multiply mixed fractions:
2 1/6 x 1 3/4

To multiply the mixed fractions, you must multiply the Denominator by the Whole Number and add the Numerator. (D x W + N)

6 X 2 + 1 = 13 = 13/6
4 X 1 + 3 = 7 = 7/4

13/6 X 7/4 = 91/24

The answer is 91/24. We now have to make it a mixed fraction.

This means:
2 1/6 X 1 3/4 = 3 19/24

Chaseley's Scribe

2008-01-22T14:55:00.002-08:00

In math class today we had to do an extreme makeover with fractions!! (:
We turned UGLY fractions into BEAUTIFUL fractions (:

1.Since 20/33 and 11/30 are ugly we swapped them. ( 11/33 x 20/30)

2.Now we had to simplify the fractions (11/33 = 1/3) (20/30= 2/3)

3.Now we just made the EXTREME MAKEOVER WITH FRACTIONS!

1/3 x 2/3 = 2/9

1x2= 2

3x3= 9

Anthony's Scribe

2008-01-17T18:49:00.000-08:00

Cedric's Scribe Post

2008-01-13T08:39:00.000-08:00

Jaryl's Scribe Post

2008-01-09T18:44:00.000-08:00

Today in class we just had to answer som fraction questions and figure them out with 3 different stategies.

http://voicethread.com/share/40991/

Marlon's Scribe post

2008-01-08T16:36:00.000-08:00

Today in class we reviewed the 3 techniques we use in order to solve fraction problems for ex. 4/5 + 5/6. The 3 techniques were clocks, money, and double number lines.

Clocks

We first found all the denominators that could go into 60 since there are 60 minutes in a hour. All the denominators we found were:

60, 2, 3, 4, 5, 6, 10, 12, 15, 20, and 3

We then did one fraction question together only using clocks as our strategy.

Qustion

3/5 + 2/12 =23/30

We first divded the denominators into 60 to get how much minutes there are in 5ths and 12ths. We then multiplied the answer which was 20 minutes(5ths) and 5 minutes(12ths) to there numerators. This made it 36 minutes(3/5) and 10 minutes(2/12). It look a little bit like this

Mr Harbeck then gave us 3 more questions to work on only using clocks, and they were

2/3 + 1/10=

7/10 + 1/5=

Money

We first found all the denominators that goes into 100 because there are 100 cents in a dollar. The denominators are

100, 2, 4, 5, 10, 25, and 50.

We then did another question as a class only using money as our strategy and the question was

Question

2/5 + 7/10=1 1/10

We first took the denominators and divided them into 100 to get 20 cents(2/5) and 10 cents(7/10). Next we took 20 cents then timesed it by it's numerator 2 to get 40 cents. We also did the same thing to 10 cents so we got 70 cents. We then got the 40 cents (2/5) and 70 cents (7/10) then added them together. When we added them together we got the sum of 1.10 which turned into a mixed fraction would be 1 10/100 then simplified would be 1 1/10. It would have looked like this

Mr Harbeck gave us 3 more questions to only solve them using money and they are

6/10 + 11/25=

2/5 + 3/4=

13/50 + 11/20=

Double Number lines

We first found out all the fractions that you could use this strategy and they are called as "Ugly Fractions".

We worked on a problem as a class only using double number lines to help us and the question was

Question

3/8 x 4/9=

We first tried to find the lowest common denominator so we multiplied 8 and 9 to get 72 so we then knew that the fraction should be out of 72. We then multiplied 3 to 9 because what you do to the bottom number of a fraction you have to do the same to the top and we got 27/72 for the first fraction. To get the second fraction we needed to multiply 4 to 8 because what you do to the bottom number of a fraction you have to do the same to the top then we got 32 and we already know it will be out of 72( 32/72). Now all we neede to do was to add them to gether and since they both have the same denominator all you have to do is add the numerator and we got 59/72. Here is how we did it on a double number line

Today's Slides

2008-01-08T10:04:00.000-08:00

Here are today's slides

| View | Upload your own

Chantal's Scribe

2008-01-08T05:50:00.000-08:00

SCRIBE

Today in class we were using a fraction number line,

what we did was started off by everyone choosing 3

fractions. My group chose:5/15, 2/5, 1/4, 1/2, 2/3,

15/20, 3/8, 9/12, 2/16, 5/8, 10/12, and 6/10.

What we did with the fractions was put them all on a

number line.

I took my 3 fractions and made them into pictures.

We also made mixed fractions and shared them with our groups.

My group had:

5 5/6, 4 5/6, 4 4/10, 3 3/4, 2 1/5, 2 3/10, 1 4/12 and 4 4/5.

Alex's 2nd growing post

2007-12-20T09:27:00.001-08:00

Question 1.

1.What strategies were needed?
the were multiplucation, division, adding, subtracting, double number line, money and fractions.

2.How did you use these strategies?
I didn't use all of them all the stratagies I used were: fractions, and adding.

3.Or How could you of used these strategies.
I could use they more better and put more ideas in it.

4.How would you figure out the price of a 6 cup bag of Betty's Snack mix? Use a ratio table
I could have used a ratio table but i don't understand how to use a ratio table.

5.
Find 3 other values (amounts of Snack Mix) that could be solved using the same ratio table. Find the $$ of your new container sizes.
I can not find 3 other values for the snack mix on my test.

Question 2.

You are going to create a voicethread explaining the strategies you used on your test. You need to choose 4 out of the 6 questions.

1. 2/3 + 1/4 + 2/5 =

2. 6/5 - 11/10=

3. 3/5 + 2/7 =

4. 1/6/+1/9 =

5. 5/6 - 1/4 =

6. 3 3/5 - 1 4/5 =

Question 3.

Today in class we reviewed the 6 strategies from the RACE Investigation. They were
Equivalence
Fractions show operations
Ratio Tables (Proportional Reasoning)
Measurement
Partial Products or the Distributive Property
The Whole Matters
Friendly FractionsCreate a voicethread or write and use pictures to describe how you would uses those strategies to explain how far the two students would have run if Mark ran 7/8 and Rachel ran 11/12 of the RACE course.

Skittlez 2nd Growingpost

2007-12-19T18:42:00.000-08:00

1.)The Stratagies that were needed were a Ratio Table, I also multiplied, and divided.

2.)I tried to do clocks and a Ratio table

3.)First i made a Ratio table thats when I multiplied 2 2/5 to get 12 and i found out 1/2 by dividingQuestion 2You are going to create a voicethread explaining the strategies you used on your test. You need to choose 4 out of the 6 questions.

1. 2/3 + 1/4 + 2/5 =79/60

2. 6/5 - 11/10=6/60

3. 3/5 + 2/7 =52/60

4. 1/6+1/9 =16/60

Question 3

I wasn't there to do it.

Question 4

1) Each person in group 1 gets 3/4 of the pizza. Each person in group 2 gets 19/20. Each person in group gets 11/12 of the pizza.

2)Each person i group 2 gets 4/5ths of the pizza.

3.)Each person in group 3 gets 5/6ths of the pizza

4.) Each person in the group gets 7/8ths of the pizza.

Shawn's Second Growing Post

2007-12-19T08:09:00.000-08:00

Question 4 ^

1) What strategies were needed?

The strategies that I used were a ratio table, multiplication, and some division.

2)How did you use these strtegies?

I used them to get 6 cups, 12 cups, and 1/2 a cup.

3)How could you have used these strategies?

I could've used a clock to divide.

4)How would you figure out 6 cups?

At the top.

5)Figure out 3 more values using the same ratio table.

Tori1's 2nd Growingpost

2007-12-18T07:44:00.000-08:00

Question 1

1)The stratiges needed were multiplying dividing fractions.
2)The stratages i used 4 the Test was multiplying and dividing fractions.
3)I would use a ratio table.
4) I would use a ratio table.

Question 2

Question 3

Question 4
Group 1 Sally Bob, Gidget and Biff Share 3 pizzas.

Group 2 Stan, Holly, Barry, Ben and Ichkabibble share 4 pizzas.

Group 3 Eric, Susy,James, Betty, Veronica and Moose share 5 pizzas.

Group 4 Paul, Alex, Chris, Jughead, Archie, Reggie, Mr. Wotherspoon and Midge share 7 pizzas.

How much pizza does each student get in the different groups? in group 1 they each get 3/4 of a peice, in group 2 each person gets a 19/20 , in group 3 each person gets 11/12 of a peice and in group 4 each person gets 4/4 of a peice.
Which group gets the largest portion of pizza? the group that gets the largest portion is Group 4 because they get a whole.

I found the answers by useing a pie chart and by dividing.

I used dividing and cutting a pie.

Jessica's 2nd Growing post

2007-12-18T07:30:00.000-08:00

Question 1

4.)

5.)

Question 2

Charity's 2nd Growing post

2007-12-16T12:31:00.000-08:00

Question 1

1.)The strategies that were needed were multiplication, division, and the ratio table.

2.)I changed my fractions into money then I multiplied 2 2/5 to find 12. However, I didn't get the answer for 1/2

3.)I could have used these stategies by using the ratio table strategy for finding the costs of 2 2/5, 12, and 1/2 , by multiplying 2 2/5 to get 12, and by dividing 12 to get 1/2.

4.)
5.)

Question 2

Question 3

Question 4

Marks:

Growing Post Question 1
15/15

Growing Post Question 2
4/4

Growing Post Question 3
14/14

Growing Post Question 4
15/15

Total Math Work
49/49

Formatting
21/21

Completing self evaluation and leaving a comment
10/10

Completing 2 peer evaluations leaving comments on the Growing Post and Voicethreads
20/20

Deduction marks
-10

Total marks for growing post
90/100

Liezl's 2nd Growing Post

2007-12-16T09:53:00.000-08:00

QUESTION ONE

a. the strategies that i used for this test were multiplication and division.

- i used multiplication to get from 2 2/5 to 12 CUPS

- i used division to get from 12 to 1/2 CUP

b. i didn't use a ratio table, but if i did, i'd use it to find out the cost of the cups

c. Betty's 6 cup snack mix

These are my 3 other values

QUESTION FOUR

Group 1: Since there is three people and four people, i wrote down the numbers of pizzas and divided them into four for each person, so each person gets 3/4 of pizza and then i multiplied the number of people to the number of pizzas. 4 x 3 = 12

Group 2: Each person in this group gets 4/5 of the whole pizza.
Group 3: I multiplied five to get 40 pizzas and then divided them into 40 to get 6 1/2 for every person.

Group 4: I multiplied 7 pizzas to 8 the number of pieces and was 56 pieces all together and then i divided 8 which was the number of people to get 7 pieces of pizza.

Tim's Second Growing Post

2007-12-14T14:58:00.000-08:00

1.What strategies were needed?
Ratio table, multiplication, division, and money

2.How did you use these strategies?
I used a ratio table to figure out the ingredients for 12 cups. For the rest I used multiplication and division

3.Or How could you of used these strategies?
I used all of these strategies.

4.How would you figure out the price of a 6 cup bag of Betty's Snack mix? Use a ratio table

5.Find 3 other values (amounts of Snack Mix) that could be solved using the same ratio table. Find the $$ of your new container sizes.

Joelle's 2nd Growing Post

2007-12-11T15:06:00.000-08:00

1.What strategies were needed?
The strategies needed in this was money, ratio table, pictures and multiplication/division to solve the problem.

2. How did you use these strategies?
I first made a ratio table, so I could figure out how much the 12 cups cost. After I figure out how much 12 cups cost, the other sizes was easy.

3. Or How could you of used these strategies?
I think I used all of the strategies when I was doing the test.

4.How would you figure out the price of a 6 cup bag of Betty's Snack mix? Use a ratio table.
I found out by using this ratio table below this question.

John's 2nd growing post

2007-12-08T17:37:00.001-08:00

1.What strategies were needed?
The strategies that were needed were using money, pictures, ratio tables, and division/multiplication to solve the problems.

2.How did you use these strategies
I used multiplication to figure out how to get from 2 2/5 to 12 but I didnt wrong,
and I did the same thing to the 12 cups, and I didn't do the 1/2 cup question.

3.Or how could you of used these strategies.
I could of used the ratio table to find my answers but I used multiplication cause that was all I thought of.

4.How would you figure out the price of a 6 cup bag of

Betty's Snack mix? Use a ratio table.

5.Find 3 other values (amounts of snack mix) that could be solved using the same ratio table. Find the $$ of your new container sizes.

Jordan's 2nd Growing post

2007-12-08T12:44:00.000-08:00

Question.1

1.) What strategies were needed?

-The strategies that were needed was money, clocks, multiplication, division, ratio tables and also picture in order to solve this problem.

2.) How did you use these strategies?

- I used these strategies to help me find out how much was needed for the snack mix and how much it would cost.

3.)How could you of used these strategies?

- I could've just used a ratio table to help me, but i used the multiplication since I thought it was easier and faster to figure out everything. The ratio table is also a good help since you can divide the sections like how much cups, shreddies, peanuts, pretzels, and how much it costs.

4.)How would you figure out the price of a 6 cup bag of Betty's Snack mix? Use a ratio table

- To find the price of six cup snack mix i made a ratio table like this :

5.)Find 3 other values (amounts of Snack Mix) that could be solved using the same ratio table. Find the $$ of your new container sizes

- I also used 3 cups , 1 cup, and 1/2 cup in a ratio table :

Marlon's 2nd Growing post

2007-12-05T16:15:00.000-08:00

QUETION 1
1.What strategies were needed?
The strategies that were needed was money/clocks, multiplication, division, ratio tables and also picture in order to solve this problem.

2.How did you use these strategies?
I used the strategies in order to find out how much ingridients that was needed to make the snack mix and to find the cost.

3.Or How could you of used these strategies.
I could have usewd a ratio table to make it very simple and neat.

4.How would you figure out the price of a 6 cup bag of Betty's Snack mix? Use a ratio table.
In order to find out the price of a 6 cup bag is to x 2/5 by 5 so you could get 12 and you do the same thing to the price (3.60 x 5= 18.00) because what you do to one side you have to do to the other side. Then you divide 12 by 2 to get 6 and the price divide by two to get 9.00.

5.Find 3 other values (amounts of snack mix) that could be solved using the same ratio table. Find the $$ of your new container sizes.

QUESTION2

You are going to create a voicethread explaining the strategies you used on your test. You need to choose 4 out of the 6 questions.1. 2/3 + 1/4 + 2/5 =2. 6/5 - 11/10=3. 3/5 + 2/7 =4. 1/6/+1/9 =5. 5/6 - 1/4 =6. 3 3/5 - 1 4/5 =

QUETION 3
Today in class we reviewed the 6 strategies from the RACE Investigation. They were
Equivalence
Fractions show operations
Ratio Tables (Proportional Reasoning)
Measurement
Partial Products or the Distributive Property
The Whole Matters
Friendly Fractions. Create a voicethread or write and use pictures to describe how you would uses those strategies to explain how far the two students would have run if Mark ran 7/8 and Rachel ran 11/12 of the RACE course.

QUESTION 4

4. Your last question deals with pizza. You need to explain which group gets the largest portion of pizza. All student groups get the same sized pizzas. It is up to you to cut them up so that they are shared equally.
Group 1 Sally Bob, Gidget and Biff Share 3 pizzas.
Group 2 Stan, Holly, Barry, Ben and Ichkabibble share 4 pizzas.
Group 3 Eric, Susy,James, Betty, Veronica and Moose share 5 pizzas.
Group 4 Paul, Alex, Chris, Jughead, Archie, Reggie, Mr. Wotherspoon and Midge share 7 pizzas.
-How much pizza does each student get in the different groups?
-Which group gets the largest portion of pizza?
-Show how you found your answer in 2 different ways.
-What strategies did you use in finding your answer.
-Show your answer is 2 different ways. I would recommend that you create a voicethread of your work.

Here I used pictures and multiplication and division. The group that got the largest protion was the group 4.

Alley's Second Growing Post.

2007-12-04T17:11:00.000-08:00

1.What strategies were needed?
The strategies that were needed are money, division, multiplication, ratio tables, and pictures to solve this problem.
2.How did you use these strategies?
I used these strategies to help me find out how much was needed for the snack mix and how much it would cost.
3.Or How could you of used these strategies.
You can use the stragies to help you find out the price and how much is needed.
4.How would you figure out the price of a 6 cup bag of Betty's Snack mix? Use a ratio table.

To find the price of six cup snack mix i made a ratio table like this :

5.Find 3 other values (amounts of Snack Mix) that could be solved using the same ratio table. Find the $$ of your new container sizes.

I also used 3 cups , 1 cup, and 1/2 cup in a ratio table :

Coaster's 2nd Growing Posts

2007-12-04T16:46:00.001-08:00

1. What strategies were needed? Ratio Table

2. How did you use these strategies? Ratio table, Addition, and divition

3. Or How could you of used these strategies?

4. How would you figure out the price of a 6 cup bag of Betty's Snack mix? Use a ratio table

5. Find 3 other values (amounts of Snack Mix) that could be solved using the same ratio table. Find the $$ of your new container sizes.this is how i did it

Pizza Pizza

For question A i drew 3 circles then divided it by 8 and i drew 3 rectangles and divided it by 4.

For question B i drew 4 circles then divided it by 5 and i drew 4 rectangles and divided it by 5.

For question C i drew 5 circles then divided it by 6 and i drew 4 rectangles and divided it by 6.

For question D i drew 7 circles then divided it by 8 and i drew 7 rectangles and divided it by8.

Thats how i did my Pizza Pizza thingy... :~)

Anthony's 2nd Growing Post

2007-12-04T09:43:00.000-08:00

1.What strategies were needed?
The strategies that were needed were using money, pictures, ratio tables, and division/multiplication to solve the problems.
2.How did you use these strategies?
I used multiplication to figure out how to get from 2 2/5 to 12, then i found out you times it by 5 to get 12 cups. Then to figure out 1/2 cup i used the division strategy to help me.

3.Or how could you of used these strategies.
I could've just used a ratio table to help me, but i used the multiplication since i thought it was easier and faster to figure out everything. The ratio table is also a good help since you can divide the sections like how much cups, shreddies, peanuts, pretzels, and how much it costs.
4.How would you figure out the price of a 6 cup bag of Betty's Snack mix? Use a ratio table.
To find out the price of a 6 cup bag of Betty's snack mix, I drew a ratio table like this.

5.Find 3 other values (amounts of snack mix) that could be solved using the same ratio table. Find the $$ of your new container sizes.
heres the other 3 values.

Question 2

Question 3

question 4

I took this picture from dhonell since im not sure where mine is right now,because someone lost mine"carmen" .

How much pizza does each student get in the different groups?

Group 1 Sally Bob, Gidget and Biff Share 3 pizzas.
each person gets 3/4 of pizza
Group 2 Stan, Holly, Barry, Ben and Ichkabibble share 4 pizzas.
each person gets 4/5 of pizza
Group 3 Eric, Susy,James, Betty, Veronica and Moose share 5 pizzas.
each person gets 5/6 of pizza
Group 4 Paul, Alex, Chris, Jughead, Archie, Reggie, Mr. Wotherspoon and Midge share 7 pizzas.
each person gets 7/8 of pizza
Show how you found your answer in 2 different ways.
for our strategy we drew circles and divided them in equal pieces then we used fractions after to solve how much eacher person got.

Group 1: in group 1 there is 3 pizzas and four people, i drew 3 pizzas and divided each of the pizzas by the number of people. in each pizza 1 person will get 1/4 then for all of of them it would equal 3/4.
Group 2: its the same thing for this one but theres 5 people and 4 pizzas only i did the same thing again drew a circle and divided that circle in 5 each person would get 4/5 from all 4 of those pizzas.Group 3: i multiplied 5 x 6 = 30 then divided it by the number of people "6" = 5/6 for all 5 of the pizza wholes.
Group 4: I multiplied 7 pizzas to 8 the number of people it = 56 pizza pieces all together from those 7 pizzas and then i divided it by 8 since there is 8 people. then it ended up giving 7 the 7 means each person gets 7 pieces from the pizzas.

Which group gets the largest portion of pizza?
Group 4 gets the largest portion of the pizza.

What strategies did you use in finding your answer.
The strategies we used were using circles and dividing them into equal pieces so you can divide how much a person gets for each pizza.

Show your answer is 2 different ways. I would recommend that you create a voicethread of your work.
we couldve used money like pretend each whole pizza was a 1$ then just divide that pizza on how many people were there then you get a decimal number then you change it to a fraction.
Then draw a circle to represent a whole pizza, and then divide it on how many people were there then at the end found like how many of them get 1 piece on a pizza so like if there was 3 pizzas and 4 people each person would get 3/4.

Dhonell's 2nd Growing Post

2007-12-03T20:27:00.000-08:00

fraction test / Question 1
1. What strategies where being used ?
The strategies being used were using a money, pictures, and ratio tables to solve the problems.
2. How did you use these strategies ?
I used these strategies by using money and ratio tables to show how i got the price of each cup and how much ingredients were in each bag. I also used pictures to show how 1 half of 1/2 is 1/4 and so on.
3. Or how could you have used these strategies ?
I did use all of these strategies ? But i could have used it in more of a organized and easy to understand way then i did use before.
4. How would you figure out the price of a 6 cup bag of Betty's Snack mix? Use a ratio table .
To find out the price of a 6 cup bag of Betty's Snack mix, i drew a picture like so =

5. Find 3 other values (amounts of Snack Mix) that could be solved using the same ratio table. Find the money of your new container sizes.
I answered like so =

Question 2:

Question 3

Question 4

If the Math Voicethreads dont work go here:

Question 2:http://voicethread.com/#u21343.b31937.i170464

Question 3:http://voicethread.com/#u21343.b31963.i170594

Question 4: http://voicethread.com/#u21343.b34874.i183828

Kat's 2nd Growing Post

2007-12-02T17:01:00.000-08:00

1. What strategies were needed?
The strategies that were needed were ratio tables, clocks and money.

2. How did you use these strategies?
I used a ratio table to find out the cost of the differently sized cups.

3. Or How could you of used these strategies.
I could have used more than one strategy to help me check my work to make sure it was right.

4. How would you figure out the price of a 6 cup bag of Betty's Snack mix?
I used a ratio table. I went straight from 2 2/5 cups to 12 cups by multiplying 2 2/5 by 5, and I did the same thing with $3.60, which equaled $18.00. I then divided 12 by 2 to get 6 cups, and I did $18.00 divided by 2 to get $9.00.

5. Find 3 other values (amounts of snack mix) that could be solved using the same ratio table. Find the money of your new container sizes.

This is what I did to answer the six test questions. I made the correction to the error I made in the last question.. which was forgetting to put the 1 in 1 and 12/15 on question 6. Sorry that the pictures are sideways...=S

Jeanine's Test Corrections

2007-12-02T16:14:00.000-08:00

Robbie's 2nd Growing Post

2007-12-02T15:34:00.000-08:00

1. What strategies were needed?
2. How did you use these strategies?
3. Or How could you of used these strategies.
4. How would you figure out the price of a 6 cup bag of Betty's Snack mix? Use a ratio table
5. Find 3 other values (amounts of Snack Mix) that could be solved using the same ratio table.
6. Find the $$ of your new container sizes

1.The strategies that were needed were a ratio table and division/multiplacation.
2. For the ratio table, I put cups on one side and money on the other side. Then multiplied 2 2/5 to get 12. Then found out it was times 5. Then did that to the money. Then divided to get 1/2 cups.
3. Another way to use this strategey is add 2 2/5 instead of multiplying them.
4. To get 6 cups you get 12 cups then divide it in 2. So it will equal 6 cups and do the same thing to the money so it will equal 9 dollars.
5 and 6. The numbers I chose was 1, 5, 10.
To get 1 cup I multipled the money so it will equal for 1 cup.
To get 5 cups I multiplied 1 cup and the money by 5 so it will = 5 cups worth.
To get 10 cups I multiplied 5 cups and the money by 2 to get 10 cups of stuff.

Question 2

Question 3

QUESTION 4

Cedrics 2nd Growing post

2007-11-29T18:00:00.000-08:00

I got it wrong the first time, but the second time I understand it, so here it is.

Questions:

What strategies were needed?
How did you use these strategies?
Or How could you of used these strategies.
How would you figure out the price of a 6 cup bag of Betty's Snack mix? Use a ratio table
Find 3 other values (amounts of Snack Mix) that could be solved using the same ratio table. Find the $$ of your new container sizes.

Answers:

1: The strategies I had used were ratio tables, division, multiplying, and adding

2 : I used this strategy to find out how much ingredients are needed and the cost of the cup.
I took 2 and 2/5 and multiplied by how much was needed to get 12. Which was by 5.
Heres a picture.

3. I could've used money or a ratio table, which was probably easier. ._.

4: I took 2 and 2/5 and multiplied it by 5 which got to 12 then to get to 6 cups I divided it by 2,
and on the price I did the same thing. 3.60 x 5 = 18.00 divided by 2 = 9.00.

5: The 3 other values are: 30, 3 and 60.

Question 2:

Question 3:
Today in class we reviewed the 6 strategies from the RACE Investigation. They were

Equivalence
Fractions show operations
Ratio Tables (Proportional Reasoning)
Measurement
Partial Products or the Distributive Property
The Whole Matters
Friendly Fractions

Question 4:

Your last question deals with pizza. You need to explain which group gets the largest portion of pizza. All student groups get the same sized pizzas. It is up to you to cut them up so that they are shared equally.

Group 1 Sally Bob, Gidget and Biff Share 3 pizzas.
Group 2 Stan, Holly, Barry, Ben and Ichkabibble share 4 pizzas.
Group 3 Eric, Susy,James, Betty, Veronica and Moose share 5 pizzas.
Group 4 Paul, Alex, Chris, Jughead, Archie, Reggie, Mr. Wotherspoon and Midge share 7 pizzas.

How much pizza does each student get in the different groups?
Which group gets the largest portion of pizza?
Show how you found your answer in 2 different ways.
What strategies did you use in finding your answer.
Show your answer is 2 different ways. I would recommend that you create a voicethread of your work.

Can't See dem VoiceThreads? Here's a link:
Question 2 Voice Thread: 4 Test Corrections
Question 3 Voice Thread: 7 Strat's
Question 4 Voice Thread: Pizza pizza

Chaseley's Second Growing post

2007-11-29T17:03:00.000-08:00

QUESTION 1.
1.
The main strategies that I've used for the test were
division, multiplication, and addition. I used a ratio
table to organize my work so it would be easier for
people to understand. It's a really good tool to use when
your doing a project like this. (:

____________________________________

4 con't.
Since I already knew what 12 cups equaled,
I just divided that by 2 because half of 12 is 6.
Then I divided everything else by 2 to get the
ingredients and price, as you can see above. :]

5.

QUESTION 2.

---> if this doesn't work you can go to this site: http://voicethread.com/share/31915/

Question 3.

QUESTION 4.

- How much pizza does each student get in the different groups?
*Group 1: 3 slices or 3/4 pizza
*Group 2: 4 slices or 4/5 pizza
*Group 3: 5 slices or 5/6 pizza
*Group 4: 7 slices or 7/8 pizza

- Which group gets the largest portion of pizza?
*Group 1: 15/60
*Group 2: 12/60
*Group 3: 10/60
*Group 4: 52 1/2 / 60
*group 4 has the largest portion of pizza

- Show how you found your answer in 2 different ways.
*I used fractions and divison with money to get my answer. as shown above.

- What strategies did you use in finding your answer.
*I used fractions and divison with money to get my answer. as shown above.

- Show your answer is 2 different ways. I would recommend that you create a voicethread of your work.
*my work is shown up on voice thread (:

THE END OF CHASELEY'S SECOND GROWING POST (:

Mary's Second Growing Post

2007-11-29T16:33:00.000-08:00

Question One

(a) The strategies that i used for this test were multiplication and division. (a2) I used multiplication to figure out how to get from 2 2/5 to 12. That helped me find out how to solve the other ingredients. The division helped me solve the answer to the ingredients for the 1/2 cup.

(b) I could of used ratio tables, but i didn't. If i did use them, i'd use them to find out the answers for the costs and the cups of ingredients.

(c) Since you can get from 2 2/5 to 12 pretty easily, i would just use the information from the 12 cup container and divide the answers by two, since you can get from 12 to 6 by dividing 12 by two.

(d) These are the three other values that i chose to do, and this is how i would use a ratio table to solve them.

Question Two

Question Three

Question Four

carmen's second growing post

2007-11-29T16:02:00.001-08:00

4. Your last question deals with pizza. You need to explain which group gets the largest portion of pizza. All student groups get the same sized pizzas. It is up to you to cut them up so that they are shared equally.

Group 1 Sally Bob, Gidget and Biff Share 3 pizzas.
Group 2 Stan, Holly, Barry, Ben and Ichkabibble share 4 pizzas.
Group 3 Eric, Susy,James, Betty, Veronica and Moose share 5 pizzas.
Group 4 Paul, Alex, Chris, Jughead, Archie, Reggie, Mr. Wotherspoon and Midge share 7 pizzas.

How much pizza does each student get in the different groups?
Group 1 got 3/4 of the pizza each.
Group 2 got 4/5 of the pizza each.
Group 3 got 5/6 of the pizza each.
Group 4 got 7/8 of the pizza each.

Which group gets the largest portion of pizza?
i think group four gets the largest amount of pizza becuase they got small slices but more of them.

Show how you found your answer in 2 different ways.

What strategies did you use in finding your answer.
We used circles (pizzas) and cut them into the amount of kids there were.

Show your answer is 2 different ways. I would recommend that you create a voicethread of your work.

Jaryl's second Growing post

2007-11-28T19:54:00.000-08:00

Question 1

1. The strategy I used was ratio tables, multiplication, and division.

2.-3.

Question 2

Question 3

Question 4

Dumb comp

http://voicethread.com/#u15824.b35176.i185966

Group 4 gets the most pizza and the way i found my answer was by using pictures and also using division.

Jessica's Second Growing Post

2007-11-28T17:20:00.000-08:00

> Question One
1 . What strategies were needed?
The strategies that I used to correct my test were ratio tables, multiplying & dividing .
2 . How did you use these strategies?
On my real test, I regret that I thought that the only strategy that could be used was multiplying . Because when I saw that 2 2/5 x 5 was 12 (cups) , I just multiplied everything else by 5 , then I couldn't work with decimals so I didn't do the 1/2 cup question . I should have put everything in fraction form so it would look simpler .
3 . How could you of used these strategies.
I should have used more of dividing & ratio tables. if i could find out what 12 cups was by multiplying , i could have found out what 1/2 cup was by dividing . And to get there easily I should have used ratio tables to show my work more clearly .
4 . How would you figure out the price of a 6 cup bag of Betty's Snack mix? Use a ratio table.

5 . Find 3 other values that could be solved using the same ratio table. Find the $$ of your new container sizes.

>Question 2
You are going to create a voice thread explaining the strategies you used on your test. You need to choose 4 out of the 6 questions.

> Question 3
Today in class we reviewed the 6 strategies from the RACE Investigation. They were

Equivalence
Fractions show operations
Ratio Tables (Proportional Reasoning)
Measurement
Partial Products or the Distributive Property
The Whole Matters
Friendly Fractions

Create a voice thread or write and use pictures to describe how you would uses those strategies to explain how far the two students would have run if Mark ran 7/8 and Rachel ran 11/12 of the RACE course.

> Question 4
Your last question deals with pizza. You need to explain which group gets the largest portion of pizza. All student groups get the same sized pizzas. It is up to you to cut them up so that they are shared equally.

1. Group 1 Sally Bob, Gidget and Biff Share 3 pizzas.
2. Group 2 Stan, Holly, Barry, Ben and Ichkabibble share 4 pizzas.
3. Group 3 Eric, Susy,James, Betty, Veronica and Moose share 5 pizzas.
4. Group 4 Paul, Alex, Chris, Jughead, Archie, Reggie, Mr. Wotherspoon and Midge share 7 pizzas.

+ For the first strategy i used pictures and fractions to get to the answer.
+ For the second strategy i used money to get to the answer . I changed the pizzas into dollars . So if there are 3 pizzas , its changed to $3.00 . Then , you divide the pizza into the people .

* How much pizza does each student get in the different groups?
* Which group gets the largest portion of pizza?
-----> The 4th group had the largest portion of pizza .
* Show how you found your answer in 2 different ways.
* What strategies did you use in finding your answer.
* Show your answer is 2 different ways. I would recommend that you create a voicethread of your work.