Topics
8. Fractions
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United States of AmericaAZ
3rd Grade

8.02 Number lines 1

Lesson
Practice
Lesson

Are you ready?

You may have already looked at representing fractions with fraction bars. Let's try this question to remember how we can use a fraction bar to model a fraction.

Which of the following shows $\frac{1}{2}$12​ of the area of the shape shaded?

  1. A

    B

    C

 

Learn

Now watch this video to learn about fractions as a point on the number line.

Apply

What value is missing from the number line below?

Remember!
  • The denominator (bottom number) is the number of equal parts the whole is divided into.
  • The numerator (top number) is how many parts have been selected, so shows the value of the fraction.

Outcomes

3.NF.A.2

Understand a fraction as a number on the number line; represent fractions on a number line diagram.

3.NF.A.2a

A. Represent a fraction 1/b on a number line diagram by defining the interval from 0 to 1 as the whole and partitioning it into b equal parts. Understand that each part has size 1/b and that the end point of the part based at 0 locates the number 1/b on the number line.

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