Reflection: Vertical Alignment Solving Absolute Value Equations and Inequalities (Day 2 of 2) - Section 3: Independent Practice


Solving Absolute Value Inequalities has been a heavy topic at my school between me, the math facilitator, and the principal.  The Common Core Standards refer to graphing absolute value, but never specifically refer to Solving Absolute Value Inequalities.

I have been researching different methods to present this concept to students with the hope of improving achievement on these types of problems.  I have tried presenting it graphically, using a number line, as well as just using procedure.  None have been extremely successful.  Some students get it, but many do not.

These problems are on the ACT, and I think it is important for students to understand and be able to do these problems.  However, because some of Common Core Standards are vague, solving Absolute Value Inequalities is never mentioned for Algebra I, Algebra 2, or PreCalculus.  My school is arguing to only teach this concept to the highest level students as an extension.

  Battling the meaning of the Common Core Standards
  Vertical Alignment: Battling the meaning of the Common Core Standards
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Solving Absolute Value Equations and Inequalities (Day 2 of 2)

Unit 2: Expressions, Equations, and Inequalities
Lesson 8 of 8

Objective: SWBAT solve Absolute Value Equations and Inequalities

Big Idea: Students will use a graphing calculator and writing compound inequalities to develop a conceptual understanding compared to memorizing.

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2 teachers like this lesson
Math, absolute value functions, Absolute Value Equations
  50 minutes
abs value ineq day 2
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