1. Module 1 Lesson 24 Percent and Rates per 100.notebook
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November 07, 2014
Monday No homework
Tuesday Election Day
Wednesday Problem Set Lesson 24
Thursday Problem Set Lesson 25
Friday Problem Set Lesson 26
Oct 8­8:
53 AM

2. Module 1 Lesson 24 Percent and Rates per 100.notebook
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November 07, 2014
Module 1
Ratios and Unit Rates
Topic D:
Lesson 24: Percent and Rates per 100
Aug 26­5:
45 PM
Student Outcomes
§ Students understand that percents are related to part‐to‐whole ratios and rates where the whole is 100.
§ Students model percents and write a percent as a fraction over 100 or a decimal to the hundredths place.

3. Module 1 Lesson 24 Percent and Rates per 100.notebook
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§ Imagine that you are shopping. You want to purchase an item for $100 but today it is
20% off. What does this mean?
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55 PM
§ What does this look like?
How is this related to ratios and rates that we
have been working on throughout this unit?
Classwork
Example 1

4. Module 1 Lesson 24 Percent and Rates per 100.notebook
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Nov 7­8:
47 AM

5. Module 1 Lesson 24 Percent and Rates per 100.notebook
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39 PM
Let's explore
§ What does this grid show?
§ How many are shaded in?
§ How many are not shaded in?
§ How can we use this model to help us think through 20% off of $100.

6. Module 1 Lesson 24 Percent and Rates per 100.notebook
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November 07, 2014
Robb’s Fruit Farm consists of 100 acres, on which three different types of
apples grow. On 25 acres, the farm grows Empire apples. McIntosh apples
grow on 30% of the farm. The remainder of the farm grows Fuji apples.
Shade in the grid below to represent the portion of the farm each apple type
occupies. Use a different color for each type of apple. Create a key to
identify which color represents each type of apple.
Color Key Part‐to‐Whole Ratio
Empire _______________ _____________________________
McIntosh _____________ _____________________________
Fuji ______________ _____________________________
Nov 7­6:
39 PM

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Exercise 2
The shaded portion of the grid represents the portion of a granola bar remaining.
What percent does each square of granola bar represent?
What percent of the granola bar remains?
What other ways can we represent this percent?
Nov 7­6:
39 PM

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a. What percent is being modeled in each picture? Write your answer as a decimal,
fraction, and percent.
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39 PM
Exercise 3

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a. What ratio is being modeled in each picture?
b. How are the ratios and percentages related?
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56 PM

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Nov 7­6:
39 PM
Exercise 4

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58 PM

12. Module 1 Lesson 24 Percent and Rates per 100.notebook
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39 PM

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Exercise 5
Mr. Brown shares with the class that 70% of the students got an A on the English
vocabulary quiz. If Mr. Brown has 100 students, create a model to show how many
of the students passed.
What fraction of the students passed the class?
How could we represent this amount using a decimal?
How are the decimal, the fraction, and the percent all related?
Nov 7­8:
38 PM

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Exercise 6
Marty owns a lawn mowing service. He has 100 lawns to mow this week and three
people to mow them. Use the 10 x 10 grid to model what percentage of the work
each employee will complete this weekend.
Color over the name with the same color you used in the diagram.
Nov 7­8:
40 PM

15. Module 1 Lesson 24 Percent and Rates per 100.notebook
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§ What are three things you learned about in this lesson?
§ Share two ways that you can write 2%.
§ What is one thing that you still want to know about from the lesson?
Aug 26­8:
21 PM
Closing
Please take out your exit ticket for Lesson 24, close your
binder, and complete the exit ticket. This will be collected.