module 3 lesson 1
TRANSCRIPT
Module 3 Lesson 1.notebook
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Module 3, Lesson 1
HW: • Lesson 1 Problem Set #1-5, 11-14, 17, 18
Do Now:
Distribute new module packet.
AIM: Generating Equivalent Expressions
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S.4
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S.4
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Anticipatory Set
Philipe is organizing the storerooms at an athletic club. He finds 3 cases and 2 cans of tennis balls in one room and 5 cases and 6 cans of tennis balls in another room.
How many cases and cans does he have?
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Anticipatory Set
Philipe is organizing the storerooms at an athletic club. He finds 3 cases and 2 cans of tennis balls in one room and 5 cases and 6 cans of tennis balls in another room.
You can also show this situation with Algebra Tiles.
x 1
3x + 2 + 5x + 6
QUESTION: Why does Philipe need to use two different types of algebra tiles?
1
1xx
x
xx
x
x x
11
11
11
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1.) 4x + 2x 2.) 2x + 2 + 3x
x 1
xx
x x
x
x
x
x
1
1
x
x
x
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x 1
3.) x + 1 + 2x + 4 4.) 3x + 4 + 3x + 2
x1
x
x1 1
11
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x1 1
x
a.) -4x + 1 + 2x - 4
x
x
xx1xx1
1
1
1
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x1 1
x
b.) -3 - 5x - 2x + 4
1
1
1
x
x
x
x
x
x
x
1
1
1
1
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S.2
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x 1
S.3
x x xxxx
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S.3
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S.3
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Problem Set S.5
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Problem Set S.6
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Closing:1.) We found that we can use any order, any grouping of terms in a sum, or of factors in a product. Why?
2.) Can we use any order, any grouping when subtracting expressions? Explain.
3.) Why can't we use any order, any grouping in addition and multiplication at the same time?