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Instructor Overview

Students focus on interpreting, creating, and using ratio tables to solve problems. They also relate ratio tables to graphs as two ways of representing a relationship between quantities.

Key Concepts

Ratio tables and graphs are two ways of representing relationships between variable quantities. The values shown in a ratio table give possible pairs of values for the quantities represented and define ordered pairs of coordinates of points on the graph representing the relationship. The additive and multiplicative structure of each representation can be connected, as shown:

 

Goals and Learning Objectives

  • Complete ratio tables.
  • Use ratio tables to compare ratios and solve problems.
  • Plot values from a ratio table on a graph.
  • Understand the connection between the structure of ratio tables and graphs.