Thursday, April 28, 2011

Ratios and Rates

This week the sixth grade students have completed the Chapter 12 unit on solving equations are moving to Ratios and Rates.

A ratio can be written to compare two things. A ratio can be written 3 different ways: a to b, a:b, or as a fraction a over b.

Students will write ratios and equivalent ratios.

A rate is a ratio of two measures that have different units, such as 15 miles/3 seconds.

A unit rate has a denominator of 1 unit, such as 20 words/1 minute.

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