Lesson plan

Write and solve single-step equations involving addition and subtraction using inverse operations

teaches Common Core State Standards CCSS.Math.Content.6.EE.B.7 http://corestandards.org/Math/Content/6/EE/B/7
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: A solution is a number that makes an equation true. Inverse operations can be helpful in finding a solution. This lesson builds on solving for variables using solution sets by asking students to solve for variables without being given a solution set. In this task, students write and solve single-step addition and subtraction equations that represent a real-life situation and include a variable. Students may use inverse operations to determine solutions and justify their solutions using substitution in algebraic equations. This concept builds toward solving for variables in inequalities and two-step equations. Special Materials: none