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.

Concepts

absolute value equations, absolute value inequalities, solving equations, solving inequalities

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Additional Tags

math

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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

HSA-REI.A.1