module 3 lesson 2

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Module 3, Lesson 2HW: • Lesson 2 Problem Set • #2 abc, 3abc, 4abc, 5 abc, 6

Do Now:

Exit Ticket from Lesson 1

AIM: Generating Equivalent Expressions

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Exit Ticket Solutions

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Homework Answers S.5

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Homework Answers S.5

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Homework Answers S.6A

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Opening Exercise: S.6B

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Example 1Subtracting Expressions: S.7

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Example 2Combining Expressions Vertically

S.7

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Example 3Using Expressions to Solve Problems S.8

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Example 4Expressions from Word Problems

It costs Margo a processing fee of $3 to rent a storage unit, plus $17 per month to keep her belongings in the unit. Her friend Carissa wants to store a box of her belongings in Margo's storage unit and tells her that she will pay her $1 toward the processing fee and $3 for every month that she keeps the box in storage. Write an expression in standard form that represents how much Margo will have to pay for the storage unit if Carissa contributes. Then, determine how much Margo will pay if she uses the storage unit for 6 months.

S.8

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Problem Set S.10Write each expression in standard form. Verify that your expression is equivalent to the one given by evaluating each expression for x = 5.

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Sprints

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Sprint Round 1233452x3x3x4x5x6x3x4x5x8x9x

10x9x5x

0­1x­2x

­2x2x5x + 3

5x + 36x + 37x + 3

7x + 310x + 3

11x11x ­ 111x ­2 11x ­ 56x ­ 4

­x + 136x + 4y7x + 2y

8x ­ 2y­4x ­ 2y­8x ­ 2y6x ­ 2y4x ­ 2y7x

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Sprint Round 2344563x4x4x5x6x6x3x5x

7x9x8x10x

x0­x­2x­6x

4x6x3x + 510x ­ 111x ­ 112x ­ 114x ­ 115x ­ 1­3x + 1­3x

­3x ­ 1­3x ­ 2

7x + 32x + 10

6x + 2y

6x 8x ­ 3y4x ­ y0 2x ­ 2y ­2y5x

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Example 5Extending Use of the Inverse to Division S.9

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Relevant Vocabulary

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Closing:1.) Why can't we use any order, any grouping directly with subtraction and division?

2.) How can we use any order, any grouping in expressions where subtraction or division are involved?

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