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Exploring Rates

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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Exploring Rates

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  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: 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.

  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

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