3. 1.What is an expression? 2.What are like terms? 3.How can an algebraic expression be translated? 4.What do you believe a variable is? 5.When can terms be combined?

4.  Slide 1: Essential Question  Slide 2:Unit Questions  Slide 3:Table of Contents  Slide 4:Simplifying Expressions  Slide 5:Terms  Slide 6:Exponents  Slide 7:Variables  Slide 8:Constants  Slide 9:Like Terms  Slide 10:Combining Terms  Slide 11:Discussion Problems  Slide 12 - 37:Jeopardy Review  Slide 38:Website Listing

5. Created By: Erin Morrison Instructor: Dr. Richard Holden For: ED 503 Date: September 8, 2009

6.  Terms:  Q uantities connected by addition or subtraction signs. Terms

7.  Exponents:  a number placed above and after another number or variable  a number used to show the power the prior number or variable will be raised to. or Exponents

8.  Variables:  a quantity that is represented by a symbol or letter  assumes any given value or set of values. (a, b, c, p, x, z, y, m, n) or Variables

9.  Constants:  A number or quantity placed before another quantity  A number multiplying another quantity  Also known as a coefficient or Constants

10.  Like terms:  Terms where the constants and exponents are alike. ****What is the solution?**** 7n³

11.  Look for terms that are the same 2n + 5n² - n – 3n² 2n – n are alike 5n² - 3n² are alike  Add or Subtract the constants 2n-n = (1)n 5n² - 3n² = 2n²  List in order by exponents Final answer: 2n² + n

12. 1) 8x + 6n 2) 6p + p 3) 3n – 3n² 4) 7z – 6z + 2z³ 5) Identify the terms, variables, constants, and exponents in problems 2 and 4. 6) Why can’t some of these terms be combined? Answer Box: 1.8x + 6n 2.7p 3.3n – 3n² 4.Z + 2z³

13. Sites to explore: Math.com Purplemath.com CoolMath.com