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8.05 Fraction bars 2

Lesson

Are you ready?

Can you find the number of equal parts a shape is divided up into?

We are going to represent the fraction $\frac{1}{2}$12 on a fraction bar diagram.

  1. How many parts do we divide the bar up into?

    We divide the bar into $\editable{}$ equal sized parts.

  2. Here is the fraction bar split into two parts.

    Which of the following represents $\frac{1}{2}$12 on the fraction bar?

    A
    B

Learn

This video looks at fraction bars for fractions with denominators up to tenths.  

Apply

Which of the following shows $\frac{3}{8}$38 on a fraction bar?

  1. A

    B

    C

 

Remember!

When writing fractions using fraction bars:

  • The denominator (bottom number) shows the number of equal parts the whole is divided into.
  • The numerator (top number) shows how many parts are shaded, so shows the value of the fraction.

Outcomes

3.NF.1

Understand that a unit fraction has a numerator of one and a non-zero denominator.

3.NF.1.a

Understand a fraction 1/b as the quantity formed by one part when a whole is partitioned into b equal parts.

3.NF.1.b

Understand a fraction a/b as the quantity formed by a parts of size 1/b.

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