Simplifying Rational Expressions

Students will learn how to simplify rational expressions.

 

Objectives:

• Students will learn to define and identify rational expressions.

• Students will learn to simplify rational expressions with polynomials.

• Students will learn to use a GCF as a simplifying tool.

• Students will practice all of these skills.

 

Suggested Grades:

Seventh Grade - Eighth Grade - Ninth Grade - Tenth Grade - including special education students

Lesson Procedure:

Print the classroom lesson plan and worksheet questions (see below).

 

Lesson Excerpt:

Introduction

- "Today, we are going to begin working with rational expressions. If you think back to rational numbers, we know that a rational number is written in fraction form where a/b, and b can never be 0. So we know that fractions, decimals and mixed numbers both positive and negative are rational numbers."
- "Now we are moving on to rational expressions. In Algebra, a rational expression is written in fraction form. The numerator and the denominator are both polynomials. Copy these notes down in your notebooks."
- On Board: A Rational Expression- written in fraction form where the numerator and denominator are both polynomials. The denominator is never 0. The fraction bar means the division is the operation.
- "Just like when we were working with rational numbers, with rational expressions, the denominator can never be 0. Also, the fraction bar means that the operation is 0."

 

Continued...

Lesson Printables:

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