# Activities

• • • ##### Author 6-8

• ##### Device
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™ Apps for iPad®
• ##### Software

TI-Nspire™
TI-Nspire™ CAS

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Introduction to Rates

#### Activity Overview

This lesson helps students explore the concept that every ratio has an associated unit rate. Unit rates are important in understanding slope as a rate of change and as a problem- solving strategy for finding solutions to problems involving proportional relationships.

#### About the Lesson

This TI-Nspire lesson helps students explore the concept that every ratio has an associated unit rate. Unit rates are important in understanding slope as a rate of change and as a problem- solving strategy for finding solutions to problems involving proportional relationships. Students will investigate rates and unit rates by sharing various numbers of bags of dog food among dogs.

Prior to working on this lesson, students should understand:

• equivalent fractions;
• unit fractions;
• multiplication and division of fractions.

This is Lesson 2 out of 15 in the Building Concepts in Mathematics: Ratios and Proportional Relationships Series

Standards