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Instructor Overview

In this lesson, students focus on the units used with rates. Students are given calculations without units and must determine the correct units to use.

Key Concepts

When dividing quantity A by quantity B to find a rate, the unit of the quotient is expressed in the form A per B.

When multiplying a B quantity by an A per B rate, you get an A quantity.

Some rates, while mathematically correct, are physically impossible in the real world.

Goals and Learning Objectives

  • Understand the units that result from rate calculations.