Comparing and Scaling Inv.1 math reflections
Complete the following questions for a graded assignment!
1. Explain what you think each word means when it is used to make a comparison.
a) ratio-when you are comparing part to part
b) percent-when you are comparing part to 100%
c) fraction-when you are comparing part t whole
d) difference –subtraction
2) Give an example of a situation using each concept to compare two quantities. (150 total seventh graders, 80 girls, 70 boys)
a) ratio-80:70
b) percent-80 divided by 150
c) fraction-8/15 for girls and 7/15 for boys
d) difference-80-70=10
Chaplin MathÜ
Tuesday, November 18, 2008
Friday, October 31, 2008
Answer the following questions on YOUR blog as a post. Use the same title as mine for your post. Write your answers in complete sentences! An easy way to do this is to copy and paste the questions below onto your post and then put your answers in a different color!
1) What has to be the same in order for two parallelograms to be similar?
In order for the Parallelograms to be similiar they must have the same angles.
2) Describe a way to find a missing side length in a pair of similar figures.
A way to find a missing side length in a pair of similiar figures is to find the scale factor. If you find the scale factor just multiply the corresponding side length x the scale factor.
3) I have a small isosceles triangle with a base of 3 inches and other sides are 4 inches.I want to create a similar isosceles triangle with a base of 7.5 inches.What should the other side lengths be and why?
The other side lengths should be 10 and 10.
Wednesday, October 15, 2008

For this 10 point assignment - answer the following questions in COMPLETE sentences and use examples to help support your answer. You could copy and paste these questions onto your blog if you need to and then type your answers in different colors. Write me a comment on this assignment when you finish! :)
1) Think back to Mug Wump - how did you decide which characters were similar to him? How did you decided which characters were NOT similar to him?
I decided that the characters would be similiar to mug if the have the same scale factor. I decide if the characters would not be similiar to him if they have a totally different x and y axis.
2) If I used (x, y) to create Mug and I used (4x, 4y) to create a new character, Pug, how would Pug be similar to Mug? What is the scale factor from Mug to Pug? How many Mugs would fit into one Pug (area)?
Pug would be similiar to Mug because he is 4x taller and 4x wider. Mug would fit into Pug 16 times.
Monday, October 6, 2008
Second Assignment

Second Assignment - There is a method to my madness! :) Write about why you think I am having you blog in math class - How will it help you? Will it help you? What is the point??? (a 7th grader's favorite question...)
I think you are having us blog in our math class so we can see how other people feel about math. I think it will help us because it can make it fun for us to do work.Yes I think it will help because more people in our class will get there work done. And it will SAVE PAPER!
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