1. Exploring Rates Objective:
1. Students will compare 2 quantities with different units of measure.
2. Make comparisons to one unit.

2. A ratio that compares two quantities with different kinds of units is called a rate.
For example: heart beats
2 minutes
The units heart beats and minutes are different, but there is a relationship between the two units.
When a rate is simplified so that it has a denominator of 1 unit, it is called a unit rate.
For example: 80 heart beats
1 minute
The denominator is 1 unit.

3. Example: Write the expression as a rate. Then find the unit rate.
Example 1: 40 points in 5 games = the rate is = 40 points 5 games the unit rate is = 8 points 1 game or 8 points per game Your example: 96 students in 3 classrooms

4. Homework: Write each expression as a rate. Then find the unit rate.
$12.00 dollars for 3 notebooks
54 cookies for 18 students
48 chairs for 6 tables
50 jumping jacks in 50 seconds
56 points in 4 quarters
260 miles in 8 gallons
152 feet in 16 seconds
1, 680 kilobytes in 4 minutes
$60 dollars for 4 CD’s
200 sit ups in 5 minutes