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8.06 Area models 1

Lesson

Are you ready?

You may have already looked at representing fractions as fractions bars or points on the number line. 

Can you answer this question?

Here is a fraction bar.

   
  1. This fraction bar has $\editable{}$ equal parts.

  2. Each part is $\frac{\editable{}}{\editable{}}$ of the whole.

 

Learn

With any model of a fraction, we use:

  • the denominator (the bottom number of the fraction) to decide how many pieces to divide it into, and
  • the numerator (the top number of the fraction) to shade the number of pieces.

Let's learn about fractions as areas of shapes. 

 

Apply

Which of the following shows $\frac{2}{6}$26 of the area shaded?

  1. A

    B

 

Remember!
  • The numerator (top number) is the number of parts shaded to represent the fraction.
  • The denominator (bottom number) is the number of equal parts the shape is divided into.

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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