# Lesson Plan: Multiplying Binomials by Algebraic Expressions Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to multiply polynomial expressions together by expanding the parentheses.

#### Objectives

Students will be able to

• multiply two binomial expressions together using expansion and simplify the result,
• multiply a binomial expression by a trinomial expression using expansion and simplify the result,
• multiply multiple polynomial expressions together (monomials, binomials, or trinomials) and simplify the result,
• solve geometric problems involving the multiplication of polynomial expressions.

#### Prerequisites

Students should already be familiar with

• multiplying a polynomial by a monomial (e.g., ),
• simplifying expressions by combining like terms,
• rules of exponents.

#### Exclusions

Students will not cover

• multiplying polynomials by binomials (or higher polynomials),
• factoring algebraic expressions,
• negative and fractional exponents.