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Lesson Plan: Combining Like Terms Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to simplify an algebraic expression of degree 1 by combining like terms.


Students will be able to

  • recognize when an expression is given in a nonsimplified form,
  • identify the like terms in an expression,
  • combine like terms by adding or subtracting their coefficients,
  • identify equivalent expressions,
  • solve geometric problems that involve the simplification of like terms.


Students should already be familiar with

  • algebraic conventions,
  • writing algebraic expressions,
  • adding and subtracting positive and negative integers.


Students will not cover

  • simplifying expressions with noninteger coefficients,
  • simplifying expressions where the expansion of brackets is required,
  • simplifying polynomial expressions of degree 2 or more.

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