Lesson Plan

Solving Equations and Inequalities with Absolute Value

Curated and Reviewed by Lesson Planet

The concept of absolute value can be difficult for learners to grasp. Reinforce their understanding of a basic absolute value expression and connect it to solving equations and inequalities. Scholars write two equations/inequalities to find the two solutions or endpoints. They then write and graph the inequality solutions.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Once solved, ask individuals to graph their solutions on a number line to reinforce the different solution sets
  • Add examples that require isolating the absolute value expression
Classroom Considerations
  • Individuals should be comfortable with solving equations and inequalities and have a basic understanding of absolute value prior to this lesson
Pros
  • Uses a logical approach to writing two equations/inequalities to represent the absolute value
Cons
  • Missing the key to the problem set provided
Common Core