Comparing and Scaling, Math Reflections Inv. 3 pg. 47 - use your book! :)1a. cost / peppers to find out how much money 1 pepper costs1b. 3 peppers/$1.50 or $1.50/3 peppers the 1st rate tells you how many peppers you can get for $1 the second rate tells you how much money it would be for 1 pepper1c.picked today $1.50/3 peppers = 50cents per pepper fresh veggie $2.25/5peppers = 45cents2.DOING ON PAPER(Make a rate table for this problem for Picked Today. Hint- think of the independent variable – green peppers or total cost?)DOING ON PAPER3a.DOING ON PAPERWrite an equation to show the price for n peppers.C = cost, n = number of peppers Equation:

1. Explain what you think each word means when it is used to make a comparison.a) ratio-b) percent-c) fraction-d) difference –2) Give an example of a situation using each concept to compare two quantities. (150 total seventh graders, 80 girls, 70 boys)a) ratio-b) percent-c) fraction-d) difference-


a) part to part
b)part to whole then multiply it by 100
c)part to whole

. 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?2) Describe a way to find a missing side length in a pair of similar figures.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?



1. In order for two parallelograms to be similar they have to have the same angles and the same sf.
2. A way to describe finding a missing side length in a pair of similar figures is to find the sf and then multiply or divide to get the answer.
3. The other side lengths should be 10 because to get to 7.5 to 3 you have to multiply by 2.5 to get the answer and 2.5 X 4 would be 10.

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?3) 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)?



1) when I think back to mug Wump I took the angles to see if they were the same and lug and glug weren’t the same.
2) the character pug would be simmular to mug because pug just got bigger . pug can go into mug 16 times.

This is for a summative grade worth 12 points (3 points each question).Sometimes when I make copies of worksheets for you, I reduce the the original to waste less paper! (one small thing to help save our planet! :) http://www.ourearth.org/Let's say that my original paper is 8 inches by 10 inches. I type in 50% to the copier to reduce the paper. Using the math reflection rubric I handed out this year, answer the following questions on your blog (1 bonus point for answering in paragraph form instead of question/answer form):1) Compare the oringinal paper's side lengths to the new paper's side lengths.2) Compare the angles of the original to the new paper.3) Compare the area of the new paper to the area of the original.

1) the reduced size of the paper 4 by 5 2) the paper got half its size smaller.