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Lesson Plan

Understand multiplicative comparison by comparing it to additive comparison

teaches Common Core State Standards CCSS.Math.Practice.MP2
teaches Common Core State Standards CCSS.Math.Practice.MP4
teaches Common Core State Standards CCSS.Math.Content.4.OA.A.2
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Big Ideas: Numbers, expressions, and measures can be compared by their relative values. Additive comparisons focus on the difference between 2 quantities. Multiplicative comparisons focus on comparing 2 quantities by showing that a quantity is a specified number of times larger than the other. This lesson builds on students' understanding of a multiplication equation as a comparison. The task allows students to compare an additive comparison to a multiplicative comparison. Students will work with both types of comparisons in the same context in order to investigate how the two situations differ. This builds toward solving word problems involving multiplicative comparisons. Vocabulary: multiplicative comparison, additive comparison Special Materials: Money (manipulative)
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