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# Exploring Rates - PowerPoint PPT Presentation

Exploring Rates. Objective: 1. Students will compare 2 quantities with different units of measure. 2. Make comparisons to one unit. A ratio that compares two quantities with different kinds of units is called a rate. For example: 160 heart beats

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## PowerPoint Slideshow about ' Exploring Rates' - maina

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### Exploring Rates

Objective:

1. Students will compare 2 quantities with different units of measure.

2. Make comparisons to one unit.

A ratio that compares two quantities with different kinds of units is called a rate.

• For example: 160 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.

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

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