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Percent Increase and Decrease

Module 4, Lesson 4

Do Now:

Exit Ticket For Lesson 3

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Homework:Lesson 4 Problem set:

1,2,3,4,6

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S.16

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S.17

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S.20

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S.20

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b.) Game stop is having a sale and all games are reduced by 55%. If the original price was $70, what is the new price?

a.) Last year the 6th grade had 350 students. This year the number increased 36%. How many students are in this year's 6th grade class?

Extra Examples

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S.21

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S.21

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S.22

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Discussion

Consider the following statement: "A sales representative is taking 10% off of your bill as an apology for any inconveniences." Write down what you think this statement implies?

S.22

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S.22

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Finding Percent Decrease

New = percent(Old)

S.23

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3.) For each phrase, identify the whole unit: S.24

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Closing:

1.) How does the context of a problem determine whether there is a percent increase or decrease?

2.) Using the equation Quantity = Percent x Whole, what does the whole represent in a percent increase or decrease problem? What does the quantity represent?

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