Lesson plan

Interpret solutions to an inequality in terms of the context by using algebraic reasoning

teaches Common Core State Standards CCSS.Math.Content.7.EE.B.4b http://corestandards.org/Math/Content/7/EE/B/4/b
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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Big Ideas: Inequalities have more than one solution. You must consider the context of the word problem when choosing appropriate solutions. This lesson builds on students' knowledge of writing and solving two-step inequalities from real world scenarios. The task presents students with 15 cards containing word problems, and a variety of numbers and graphs which represent solutions to the word problems. Students sort these cards into three groups, justifying their decisions. This builds toward students' future work in fluently solving two-step inequalities in grades 7 and 8. Vocabulary: solution Special Materials: Supplementary Handout, 1 copy per student (optional)