Name: Angela Doyle

Subject: 7th Grade Math – Simplifying Expressions Review

Period: First

Approximate Time: 50 minutes

Objectives: Students will

Apply the order of operations to simplify expressions. Math 1.a

 Identify the distributive property of multiplication using variables. Math 2.e

Materials: construction paper line, construction paper square, paper, pencils

Warm Up: What is another way to write 1+2x+3+6-x-10?

Set: I’m having trouble finding certain words today, can you help me?  What do I mean by “Cheyenne is a person who is young and not a male”  (“Cheyenne is a girl”)  What did I mean when I said, “I’m fixing to eat the meal that is not lunch or dinner”?   There are many ways to say the same thing-- some are quicker and easier than others.  In the same way, there is more than one way to write the same expression.  Some are simpler.  It’s like Miss Smith had you walk to the board yesterday. There are many ways to get to the board, but you end up there no matter what.  Yesterday we learned about simplifying expressions and today we’ll review for our quiz.  State objectives.

Procedure:

    A. Review the definition of a variable, coefficient, and constant by popcorn calling.  Have students work 14-17 on page 20, evaluating expressions.

    B. Review “like terms,” adding negatives, and the distributive property with cold calling.  Show that x=construction paper line and x^2=a square do not count as like terms.  Do 1-2 from worksheet on board. Students work 3-5 at seats.

    C. Review exponents in multiplication and division and distribution with popcorn calling.  Do 6-7 from worksheet on board. Students work 8-10 at seats.

    D. The students will take a quiz.

Closure: Ask students what we covered during our review session.  Restate Objectives.  Ask how that relates to speech-- why is that like saying “Darion has 5 extensions coming off of his left hand”?  Expressions are cool, but they become even more fun when you can solve for a variable.  Next period we will move on to equations.

Homework: None

Assessment/Evaluation:

Informal: The teacher will walk around to help students with seatwork (M) to make sure the correct process is being used (C).

Formal: Seatwork and warm-up will be collected (M) to determine if the students are simplifying properly (C). Grades will be recorded in the grade book (D).