1. Be seated before the bell rings DESK All bags, purse, etc off desk homework Be prepare : 1)Have your homework out to be stamp -Due pg 10 ; 12-21, 26-39 Warm-up (in your notes) Glue in notes Quiz – Thursday HW: pg 17; 18-23,35-37

2. Ways to think of set notation Roster Notation Interval Notation Can only do lists Can only do infinite intervals Set-Builder Notation Can do BOTH

3. Warm-up 8-12 Write down in the think column of what you think each properties of real number is.

4. Property: Think DescribeExample Identity Property (of addition) Identity Property (of multiplication) Inverse Property (of addition) Inverse Property (of multiplication) When you add and it keeps the nuber the same. identity is 0 What you multiply by a number so it keeps its identity. multiplicative identity is 1 When you add a number to its inverse it equals 0 When you multiply a number by its inverse it equals 1 5 + 0 = 5 5 x 1 = 5 3 + (-3) = 0

5. Commutative Property Associative Property Distributive Property Property: Think DescribeExample Add or multiple in any order 5+2 = 2+5 5x2 = 2x5 When adding or multiplying, you can group in any order 2(3+4) = 2(3) + 2(4) a(b + c) = ab + ac

6. Practice with white boards

7. (9 + 8) + 7 = 9 + (8 + 7) The Associative Property of Addition It is the only addition property that has parentheses. Name That Property!

8. 12 + 0 = 12 The Identity Property of Addition It is the only addition property that has two addends and one of them is a zero. Name That Property!

9. 9 + 7 = 7 + 9 The Commutative Property of Addition It is the only addition property that has numbers that change places. Name That Property!

10. 4 + 6 = 6 + 4 The Commutative Property of Addition Numbers change places. Name That Property!

11. 3 + 0 = 3 The Identity Property of Addition See the zero? Name That Property!

12. (4 + 3) + 2 = 4 + (3 + 2) The Associative Property of Addition It has parentheses! Name That Property!

13. a + b = b + a The Commutative Property of Addition Moving numbers! Name That Property!

14. A (a + b) + c = a + (b + c) The Associative Property of Addition Parentheses! CB

15. 3 + 2 = 2 + 3 Commutative Property Name That Property!

16. 10(1/10) = 1 Multiplicative Inverse Property Name That Property!

17. 3(x – 10) = 3x – 30 Distributive Property Name That Property!

18. 3 + (4 + 5) = (3 + 4) + 5 Associative Property Name That Property!