**8th Grade, CC3, Unit 2**

**Simplifying with Variables**

**Extra Practice Activities**

Quizlet: Algebra Tiles to Algebra Operations

Quizlet: Ch 2 Vocabulary

Gizmos (login through Clever): Find CPM CC3 Chapter 2 "Addition of Polynomials" and "Using Algebraic Expressions"

Other ideas: Create flashcards, work through R/P problems, review HW problems, review notes, have some quiz you

Chapter OutlineSection 2.1 This section, the only section of the chapter, introduces algebra tiles. Using algebra tiles will help develop the symbolic manipulation skills of combining like terms and solving linear equations. A special focus will be placed on the meaning of “minus” and how to make “zero.” VocabularyAdditive Identity Additive Inverse Associative Property combining like terms Commutative Property equation mat evaluate expression comparison mat Multiplicative Identity Multiplicative Inverse Order of Operations term variable |
Guiding Questions1. What is a variable? 2. What can I do with a variable? 3. How can I solve for a variable? 4. How many different ways can I write an expression? Classroom HandoutsAll Methods & Meanings are available in the textbook. For classroom notes and other handouts, talk to your teacher. Standards8. EE. 7a Give examples of linear equations in one variable with one solution, infinitely many solutions, or no solutions. Show which of these possibilities is the case by successively transforming the given equation into simpler forms, until an equivalent equation of the form x = a, a = a, or a = b results. 8. EE. 7b Solve linear equations with rational number coefficients, including equations whose solutions require expanding expressions using the distributive property and collecting like terms. |