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Lesson Plan

Compare and convert units of time by creating conversion tables

teaches Common Core State Standards CCSS.Math.Content.4.MD.A.1
teaches Common Core State Standards CCSS.Math.Practice.MP2
teaches Common Core State Standards CCSS.Math.Practice.MP3
teaches Common Core State Standards CCSS.Math.Content.4.OA.A.1
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Big Ideas: The same measurement value can be represented in multiple ways (e.g. 2 minutes = 120 seconds). Units of measurement can be compared by their relative values. Multiplicative comparisons show the relationship between units of measurement (1 minute is 60 times as much as 1 second, 1 pound is 16 times as much as 1 ounce, 1 foot is 12 times as much as 1 inch). In this lesson, students use a conversion table to solve problems with time. In third grade, students calculated elapsed time by using minutes. Seconds is a new unit of measurement for students; they should continue to refer to their benchmark actions from Lesson 1 to understand the length of time of 1 minute and 1 second. Conversion tables will also be used to reinforce the multiplicative comparison of the two units of measurement. Vocabulary: second Special Materials: < Include any materials needed for the lesson here >
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