The Language of Algebra · Algebraic Thinking

Equations as Reasoning

Viewing equation solving as a logical process of maintaining equality rather than a series of memorized steps.

Key Questions

  1. 1How can we prove that two different looking expressions are actually equivalent?
  2. 2What determines the validity of a step taken while solving an equation?
  3. 3Why must we apply the same operation to both sides of an equality?

Common Core State Standards

CCSS.Math.Content.HSA.REI.A.1CCSS.Math.Content.HSA.CED.A.1
Grade: 9th Grade
Subject: Mathematics
Unit: The Language of Algebra
Period: Algebraic Thinking

Suggested Methodologies

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