Dividing Rational Expressions: Trinomials

Objectives:

• Students will review the basics of dividing rational expressions.

• Students will learn how to apply this knowledge when dividing rational expressions with trinomials.

• Students will learn how to leave their answers in simplest form.

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:

I. Introduction and Review

- "In our last lesson, we worked on dividing rational expressions. A lot of these problems had binomials in them that needed to be factored. Let's take just a minute to review before we add on to what we have already learned. Today's lesson will have trinomials in them."
- "Here is an example for us to review."
- On Board: 2x + 6 / x + 3
18x2 16x
- "Now let's look at this problem. Our first step when dividing rational expressions is what?"

Continued...