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Module 1 Lesson 25 A Fraction as a Percent.notebook
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November 10, 2014
Oct 88:53 AM
Monday Problem Set Lesson 25Tuesday No SchoolWednesday Problem Set Lesson 26Thursday Exit Tickets Lessons 24, 25, 26
Friday Problem Set Lesson 27Module 1 Test Thursday
Module 1 Lesson 25 A Fraction as a Percent.notebook
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Lesson 24 Problem Set Sample Solutions
Module 1 Lesson 25 A Fraction as a Percent.notebook
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Module 1 Lesson 25 A Fraction as a Percent.notebook
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Module 1Ratios and Unit RatesTopic D: Percent
Lesson 25: A Fraction as a Percent
Student Outcomes
§ Students write a fraction and a decimal as a percent of a whole quantity and write a percent of whole quantity as fraction or decimal.
Module 1 Lesson 25 A Fraction as a Percent.notebook
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Create two ratios that would describe the images.
ClassworkExample 1
Module 1 Lesson 25 A Fraction as a Percent.notebook
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Sam says 50 % of the vehicles are cars. Give three different reasons or models that prove or disprove Sam’s statement. Models can include tape diagrams, 10 x 10 grids, double number lines, etc.
4.
Module 1 Lesson 25 A Fraction as a Percent.notebook
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How is the fraction of cars related to the percent?
Use a model to prove that the fraction and percent are equivalent.
What other fractions or decimals are equal to the same percent?
Module 1 Lesson 25 A Fraction as a Percent.notebook
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Example 2
A survey was taken that asked participants whether or not they were happy with their job. An overall score was given. 300 of the participants were unhappy while 700 of the participants were happy with their job. Give a part‐to‐whole ratio for comparing happy participants to the whole. Then write a part‐to‐whole ratio of the unhappy participants to the whole. What percent were happy with their job, and what percent were unhappy with their job?
Happy _____________________ ______________ Unhappy _____________________ ______________Ratio Percent Ratio Percent
Create a model to justify your answer.
§ Why is it helpful to write this fraction with a denominator of 100?
§ How would we represent this as a decimal?
Module 1 Lesson 25 A Fraction as a Percent.notebook
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Nov 139:06 AM
Renita claims that a score of 80% is the same as the fraction . She drew the following picture in order to support her claim.
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Is Renita correct? ______________ Why or why not?
How could you change Renita’s picture to make it easier for Renita to see why she is correct or incorrect?
What would this be as a decimal?
Exercise 1
Module 1 Lesson 25 A Fraction as a Percent.notebook
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Exercise 2Use the tape diagram to answer the following questions.
80 is what fraction of the whole quantity? is what percent of the whole quantity?
50% is what fraction of the whole quantity? 1 is what percent of the whole quantity?
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What would each be as a decimal?
Module 1 Lesson 25 A Fraction as a Percent.notebook
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Exercise 3
Maria completed of her work day. Create a model that represents what percent of the workday Maria has worked.
What percent of her work day does she have left? What would this be as a decimal?
How does your model prove that your answer is correct?
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Module 1 Lesson 25 A Fraction as a Percent.notebook
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Exercise 4
Matthew completed of his work day. What decimal would also describe the portion of the workday he has finished?
How can you use the decimal to get the percent of the workday Matthew has completed?
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Exercise 5
Complete the conversions from fraction to decimal to percent.
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Exercise 6
Choose one of the rows from the conversion table in Exercise 5 and use models to prove your answers. (Models could include a 10 x 10 grid, a tape diagram, a double number line, etc.)
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Aug 268:21 PM
Closing
Please take out your exit ticket for Lesson 25, close your binder, and complete the exit ticket. This will be collected.
Module 1 Lesson 25 A Fraction as a Percent.notebook
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November 10, 2014
Nov 72:42 PM