Unit 2, Lesson 9
Representing Ratios with Tables
Accelerated 6
Preparation
Lesson Narrative
In this lesson, students learn to organize equivalent ratios in a table, which is a more abstract tool but also a more flexible one for solving problems.
Students first encounter a situation that involves ratios with large numbers. They see that representing the situation using a double number line diagram poses challenges and that a different representation would be helpful. Students are then introduced to a table as another way to represent and reason about equivalent ratios. Next, students work to complete a partially filled table. To do so, they need to look for and make use of structure (MP7).
- 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.
Let’s use tables to represent equivalent ratios.
Required Preparation
None