1. I can identify parts of an expression using mathematical terms.
6.EE.A.2b

2. What are the parts of an expression?
Constant: a number that stands by itself. (does not have a variable)
Coefficient: a constant multiplied by a variable or variables. (the number in front of the variable)
Variable: a letter that is used to represent a number.
Operation: the mathematical symbol telling us what to do.

3. Algebraic expression: A number sentence without an equal sign, has at least one variable; two terms and one operation.
Term: Each part of an expression separated by an operation.

4. Constants
2x x + 2
Coefficients
2x & 6x are like terms because they have the same variable
4 & 2 are like terms because they are both constants.

5. What are the coefficients of the terms?

6. Examples Terms:______________________________
Variables:___________________________
Constants:__________________________
Coefficients:_________________________

7. Terms:______________________________
Variables:___________________________
Constants:__________________________
Coefficients:_________________________

8. Terms:______________________________
Variables:___________________________
Constants:__________________________
Coefficients:_________________________

9. How many terms do these each have?

10. How parentheses affect the number of terms
Compare and (3 + 4). How many terms does each expression have? has two terms separated by +. (3 + 4) is enclosed by parentheses that serve as a grouping symbol, so this expression has 1 term.

11. How many terms are in the following expressions
How many terms are in the following expressions? 2(x + 5) – 9 6(2x – 5) + 9x - 1

12. Write the following two term expressions as one term by factoring.
6 + 15
4 + 16

13. Let’s try with some variables
7n + 21
8d – 12
15r – 10

14. 4. 2m + 2
6z – 27
24k + 16