Friday, September 10 Fill in Planner

Practice 1-8 Enrichment 1-7 (Extra Credit)

Today’s Agenda

Bell Work

Grade Homework10 minutes

Note Taking30 minutes

Guided Practice20 minutes

Independent Work Time15 minutes

Objective SWBAT

Identify Properties Use deductive reasoning

Properties of Real NumbersFor every real number a, b, and c,

abba abba 7 3 37

Properties of Real NumbersFor every real number a, b, and c,

)()( cbacba )()( cbacba 6 4 5 6 4 5

Properties of Real NumbersFor every real number a, b, and c,

aa 0 aa 19 6

Properties of Real NumbersFor every real number a, b, and c,

a )( aa 0

11

a

a

5

1

Properties of Real NumbersFor every real number a, b, and c,

acab 45 25acab 45 25

Properties of Real NumbersFor every real number a, b, and c,

00n

0

nn 1

5

Deductive reasoning

Examples

Commutative Property of Multiplication

The order of the factors changes.

Multiplication Property of Zero

a factor multiplied by zero is zero.

Inverse Property of Addition

The sum of a number and its additive inverse is zero.

Inverse Property of Multiplication

A number multiplied by its reciprocal is 1.

25.15 21.95commutative

14.85 25.15 21.95 associative

30 21.9551.95

$51.95

Justifying Steps Using Properties

x4 32 distributive)43( distributive

1x Identity Property

Associative Property of Addition: The grouping changed, but the order did not.

Associative Property of Multiplication: The grouping changed, but the order did not.

Commutative Property of Multiplication: The order changed.

65 aa Commutative

6)15( a Distributive

66 a add

Objective SWBAT

Identify Properties Use deductive reasoning