SIWS Investigation 3.2

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Mathematics

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7th - 8th Grade

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Ms. Prudhom

Used 3+ times

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4 Slides • 6 Questions

SIWS Investigation 3.2

#1 Focus Question: What strategies will work to find a solution that is common between 2 equations and/or expressions?

#2 Vocabulary: Distributive property

allows us to "pass out" what is directly outside the parenthesis, to EVERYTHING inside
multiply what is on the outside to EVERYTHING on the inside

Multiple Choice

When we distribute, we see what mathematical symbol every time?

multiplication sign

parenthesis

#3 Distribute

Example
2(x+5)
Step 1: pass out
Step 2: multiply
Step 3: keep the sign
2 times x= 2x
2 times 5 =10
ANSWER: 2x+10

Multiple Choice

Distribute the following: 6(2y+3)

12y+18

18y+12

8y+9

6y+18

Open Ended

Distribute the following: 9x(2+10)

Type response here

#4 Compare

Example:
12+8x and 4(3+2x)
12+8x and 4times 3 + 4 times 2x
Are they equal?

Multiple Choice

Are these expressions equal?

50d+10 and 5(10d+2)

yes

Multiple Choice

Are these expressions equal?

12+55k-9 and 3k+55

yes

Multiple Choice

Challenge: Are these expressions equal?

5x(4+7x) and 20x +35x^2

yes

SIWS Investigation 3.2

#1 Focus Question: What strategies will work to find a solution that is common between 2 equations and/or expressions?

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