Fractions

Lesson 25

Objective

Understand fractions as numbers.

Common Core Standards

Core Standards

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  • 3.NF.A — Develop understanding of fractions as numbers.

Criteria for Success

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  1. Develop understanding for fractions as numbers.
  2. Justify why fractions are numbers using a variety of reasoning (MP.3).

Tips for Teachers

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  • Lesson 25 is intended to address the cluster level expectations for 3.NF.A, namely, “develop understanding of fractions and numbers.” Since Anchor Task #1 is quite extensive, it is the only Anchor Task for the lesson. The lesson could consist entirely of the discussion regarding Anchor Task #1, or a Problem Set and Homework can be designed to review much of the work of the unit. The Target Task is optional, as well, depending on whether Part B of Anchor Task #1 feels sufficient for students to demonstrate their understanding of fractions as numbers.
  • There is no Problem Set assigned for this lesson. The first task linked below is aligned to today’s objective. The rest of the resources are more of a comprehensive review or performance task addressing all of the content throughout the unit thus far. It is at your discretion which resources, if any, you use to create a Problem Set and Homework.

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  • Problem Set
  • Student Handout Editor
  • Google Classrom Integration
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Anchor Tasks

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Artie said: “Choose a number between 1 and 10.

Kay said: “3/2.”

Artie: “That’s not a number! It’s a fraction.”

Kay: “But fractions are numbers!”
 

Part A

Are fractions numbers? Take this quiz and decide.

a. Is it possible to add two fractions?

Yes No Don't Know

b. Is it possible to add a fraction and a whole number?

Yes No Don't Know

c. Is it possible to place a fraction on the number line?

Yes No Don't Know

d. Is it possible for a fraction to equal a whole number?

Yes No Don't Know

e. Is it possible to add two fractions and have the sum be a whole number?

Yes No Don't Know

Part B

Based on your answers, do you agree with Artie or with Kay? Write one or two sentences to explain why.

Guiding Questions

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References

Achieve the Core Are Fractions Numbers?

Are Fractions Numbers? by Student Achievement Partners is made available by Achieve the Core under the CC0 1.0 license. Accessed March 19, 2019, 11:38 a.m..

Modified by The Match Foundation, Inc.

Target Task

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Are fractions numbers? Explain why or why not.

Mastery Response

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