1. Warm Up – Write an algebraic expression for each example
1) Twenty less than a number n
2) 7 times the quantity x minus 3
3) The quotient of a + b and 2
4) 2 cubed decreased by three
5) The total of the numbers a, b and c
**CW Worksheet #s 1- 8 as warm up

2. Homework Check 1.1 1) z – 3 2) 2b 3) 4m 4) 4x + 3 5) 2a – 9
6) nine more than the product of -4 and a number x
7) The product of 2 and n divided by 3

3. Simplifying & Evaluating Expressions
Unit 1, Day 2

4. **Reminders
Like terms- have identical variables, meaning they have the same variables to the same exponent
Constants are like terms
Simplify means to rewrite an expression using the smallest number of terms

5. Equivalent Expressions
Expressions that have the same value for all the values of the variables
It is a step to finding the most simplified expression
The most simplified expression is also an equivalent expression

6. Examples: Identify the Like Terms

7. Examples: Now Combine the like terms
Make sure to point out to your students an EQUIVALENT EXPRESSION and the MOST SIMPLIFIED EXPRESSION

8. Distributive Property
The process of simplifying an expression by distributing a term by multiplying to any contents in the parenthesis. EX: Simplify each expression: 1) 2) 3) 4)

9. Simplify each expression:
1. 5(y + 2) + 7y
2. 5(x + 3) + 7 (4 + 2x)
3. – 3 (z + y) – 4 (3 + 5z)

10. CW Worksheet #s 9 – 19 odds
Work together!!!

11. Evaluating Expressions
To evaluate expressions you simply plug given values into the expression
Make sure to use PEMDAS when evaluating
Example: If a = 9 , b = 8, and c = 5, evaluate:
8c + ab – 4b

12. Evaluating Expressions
1. If a = 12, b = 5, and c = 4, evaluate: 3c + bc – 2a 2. If x=4, y=-2, and w=1/2, evaluate: 3. If p=-3, q=2, and u=8, evaluate:

13. CW Worksheet #s 1 – 14 odds

14. Homework:
HW 1.2
Remember – Quiz Friday!!