Lesson plan

# 5. Generating expressions to calculate with percent (FP)

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.MP3 http://corestandards.org/Math/Practice/MP3

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Lesson objective: Use the distributive property to create equivalent expressions to calculate with percents.

This lesson helps to build fluency with creating equivalent expressions to flexibly calculate with percents. Double number lines are used here because they support the development of multiplicative reasoning. This work develops students' understanding that the distributive property allows for using a variety of expressions to calculate with percents.

Students engage in Mathematical Practice 2 (reason abstractly and quantitatively) as they make sense of the quantities and their relationships.

Key vocabulary:

• percent
• distributive property
• expression
• double number line
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• 5. Generating expressions to calculate with percent (FP)