1. Day 2 Distributive Property.notebook December 14, 2012
AIM: Distributive Property
Do Now
Simplify the following expressions.
a.) -2x + 8 - 2x - 6
b.) -4x - 4 - 8 + 6x
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2. Day 2 Distributive Property.notebook December 14, 2012
Brain Pop
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3. Day 2 Distributive Property.notebook December 14, 2012
Anticipatory Set
1.) Evaluate the following expression
using order of operations.
6(3 + 4)
2.) What was the first step in
your evaluation?
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4. Day 2 Distributive Property.notebook December 14, 2012
3.) Why can you not evaluate the
following expression?
6(x + 4)
Distributive Property of Multiplication over Addition: To
multiply the sum or difference, multiply each number within the
grouping by the number outside the grouping symbol.
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5. Day 2 Distributive Property.notebook December 14, 2012
Expression Model Re-Write
1 1
x
x 1 1
3(2x + 4)
1 1
x
x 1 1
1 1
1 x
x x 1 1
-1
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6. Day 2 Distributive Property.notebook December 14, 2012
Expression Model Re-Write
-1
2(2x - 3) x
x -1
-1
-1
x -1
-1
x
1
x
-1
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7. Day 2 Distributive Property.notebook December 14, 2012
Expression Model Re-Write
-1
4(x - 2) x
-1
-1 x -1
x
-1 -1
-1
x
1 -1
x
-1
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8. Day 2 Distributive Property.notebook December 14, 2012
Expression Model Re-Write
1
2(x + 3) x
1
1
1
x
1
1
1
x
-1
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9. Day 2 Distributive Property.notebook December 14, 2012
Conjecture: What property of
mathematics allows us to simplify the
expressions we have completed?
Conjecture: How can we simplify an
expression with the distributive property
without using the algebra tiles?
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10. Day 2 Distributive Property.notebook December 14, 2012
Simplify the following expressions using the
distributive property. Show all work.
D.) -5(x + 3)
E.) -9(x - 6)
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11. Day 2 Distributive Property.notebook December 14, 2012
Simplify the following expressions using the
distributive property. Show all work.
F.) -6(x + 4)
G.) -6(x - 2)
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12. Day 2 Distributive Property.notebook December 14, 2012
BEFORE YOU LEAVE
Create expressions with parentheses
that would simplify to the following.
a.) 5x + 15 b.) 8x - 16
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13. Day 2 Distributive Property.notebook December 14, 2012
Homework
Homework Sheet
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14. Day 2 Distributive Property.notebook December 14, 2012
Mr. Tjersland's Math 7
Homework: Homework Sheet
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15. Day 2 Distributive Property.notebook December 14, 2012
AIM: Distributive Property
Distributive Property of Multiplication over Addition: To
multiply the sum or difference, multiply each number within the
grouping by the number outside the grouping symbol.
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16. Day 2 Distributive Property.notebook December 14, 2012
Expression Model Re-Write
3(2x + 5)
3 5
x
-3 -5
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17. Day 2 Distributive Property.notebook December 14, 2012
1.) -9(x - 6)
2.) -5(x + 3)
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