Lesson plan

Explore multiplicative relationships between multiple percent discounts

teaches Common Core State Standards CCSS.Math.Content.7.EE.B.3 http://corestandards.org/Math/Content/7/EE/B/3
teaches Common Core State Standards CCSS.Math.Content.7.RP.A.3 http://corestandards.org/Math/Content/7/RP/A/3
teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4

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Big Ideas: Multiple sales discounts have a multiplicative relationship. In this task, students will analyze multiple discount scenarios and decide whether order matters. They will explore the multiplicative relationship between multiple discounts using area models. They will make connections to algebraic thinking and the commutative property of multiplication. Vocabulary: discounts, percent, multiplicative relationship, commutative property of multiplication Special Materials: Student handouts with blank 10x10 grid available under "Before the Lesson." Calculators as necessary.