Pythagoras Scribe Edit

In preparing for your parent quiz we need to add some information to your Pythagoras Post.  Here are the instructions:

• add the label pythagorean relationship to your post

Now add the following three questions.  The easiest way is to copy them to a piece of paper and take photos of them.  Upload the photos to your post.

1. Answer in a short paragraph and with diagrams

2. Solve for the missing side length.

3. Is this a right triangle? Prove it!!!




For those of you who have not done a Pythagoras post yet you need to choose 3 questions from the text book and explain your answers.  Please add the label pythagoras to your post.

Someone needs you!

Plaza Middle School has sent us a video and wants our help.  Check out their word problem!



Please leave your solutions behind here at the blog and at their yourbe site.  The room that leaves the most solutions behind will win a prize on Monday! For those of you who are really "lazy" please cut and paste your blogger comments into their youtube feed.

Good luck

Pythagorean Relationship Scavenger Hunt

Welcome to the next Unit in Math.  Pythagoras.  This is an introductory scavenger hunt that will introduce you to what you will be learning.  
This assignment is to be done quietly.  You will receive inclass deductions if you are too loud or off task.

A) Set up Instructions

• Fold a piece of in to quarters (hamburger hotdog folds)
• Put your name and room number in the upper left quadrant.
• Put Pythagoras Scavenger hunt in the upper right quadrant.

B) Upper Left Quadrant

1. Define a Right Triangle (text book).  Explain what the legs and hypotenuse are.

C) Upper and lower Right Quadrants

1. Define the Pythagorean Relationship. (textbook)
2. Use the grid paper provide to draw a right triangle with sides that measure 3cm, 4cm and 5 cm.  Label the legs side a and b.  Label the hypotenuse side c. Cut this triangle off of the grid paper and relabel the side lengths if you have cut them out.
3. Create 3 squares on your grid paper.  

• One square has an area of 9 squares
• One square has an area of 16 squares
• One square has an area of 25 squares
• Lightly colour each one a different colour

Using glue stick can you use the three squares and the right triangle to explain the Pythagorean relationship. a2 + b2 = c2

D) Lower Left Quadrant

Use the following numbers and shapes to explain the Pythagorean Relationship.
Draw a right Triangle
Attach 3 squares to each of the sides of the right triangle.
Now place the following labels and numbers into the diagram (it does not need to be to scale)

side a, side b, side c, hypotenuse,
a2, b2, c2
8 cm, 10 cm, 6 cm
100 cm2, 36 cm2, 64 cm2

Due Tuesday during class. We will correct it in class

Some more Squaring Work

Here are a few questions.  Try them out and see if they improve your test score on Thursday's quiz.
Feel free to leave answers as a comment! :)

1. Use prime factorization to show whether 120 and 196 are perfect squares?

2. What is the area of  a square picture with a side length of 22cm?

3. Challenge yourself to memorize the perfect square numbers from 1 to 225.  Can you repeat them from lowest to highest and then back down to lowest in under 1 minute? Bonus mark on the quiz if you can do this!

4. Determine which of the following numbers are perfect squares: 10, 100, 1000, 10 000, 100 000.
a) State the square root of each perfect square.
b)How do you know that the others are not perfect squares?
c)Create a quick method for determining mentally if the numbers are perfect squares.
d)Use this method to determine if 1 000 000 000 is a perfect square.

5. Determine the square root of 6400, 640 000, 64 000 000.
a) Describe a quick method for determining mentally the square root each number above.
b) Explain why this method does not work for evaluating the square root of 640.
What is the square toot of 640 000 000 000. How did you find your answer.

Square Roots Part 1

Here are today's slides

Square roots

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E-Portfolios

Here are your E-portfolio URL's

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817

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Here is today's homework. Please calculate the sale price, discount and total price for 4 of the 10 items.  Please show all of your work.  Don't forget to comment on the video of the last post if you want to.