Representing Equivalent Ratios with Tables

— Comprehend the words “row” and “column” (in written and spoken language) as they are used to describe a table of equivalent ratios.
— Explain (orally and in writing) how to find a missing value in a table of equivalent ratios.
–Interpret a table of equivalent ratios that represents different sized batches of a recipe

These are just a few of the calculations that I observed as the students were generating tables of equivalent ratios.

How Much for One?

— Calculate equivalent ratios between prices and quantities and present the solution method (using words and other representations).
— Calculate unit price and express it using the word “per” (orally and in writing).
— Understand the phrase “at this rate” indicates that equivalent ratios are involved.

This problem is a review of students’ previous work on area and nets.