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.
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.