# Lesson Plan: Simplifying Expressions: Combining Like Terms Mathematics • 6th Grade

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to simplify polynomial expressions by adding and subtracting like terms.

#### Objectives

Students will be able to

• understand that like terms have the same variables and the same exponents on each of the variables,
• understand that like terms can be combined using addition and subtraction to reduce the number of terms in a polynomial,
• simplify polynomial expressions by adding and subtracting like terms,
• solve geometric problems that involve the simplification of like terms.

#### Prerequisites

Students should already be familiar with

• expressing word problems as polynomial expressions,
• identifying monomials, binomials, and trinomials.

#### Exclusions

Students will not cover

• polynomial equations,
• polynomial expressions with more than 3 variables,
• simplifying polynomial expressions using multiplication or division,
• simplifying polynomials by factoring,
• simplifying expressions using laws of exponents,
• simplifying rational expressions.