Creating Multiple Proportions. Sunday, July 13, 2014 We are learning to…use proportional reasoning to solve problem situations. Vocabulary Review:. What is a ratio? A comparison of two quantities, usually written in the form of a fraction in simplest form. What is a proportion?
Sunday, July 13, 2014
We are learning to…use proportional reasoning to solve problem situations.
“Prove that you have created equal ratios.”
“Is there only one proportion that you could have created to solve this problem?”
“What about creating proportions from data vertically in the table?”
This is one proportion!
Solve this proportion!
We cannot use these ratios to help us solve because they do not create equal ratios (proportions).
1. Do these make equal ratios?
2. Can we make a true proportion?
Why does this comparison not give us a proportion?
3. Can we use this to help us find a solution? Why or why not?
Create and solve TWO different proportions that could be used to find the solution in this problem situation.
Be ready to share with the class.