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