Model and Represent 1/2,1/3,1/4 and 1/5 (3).

Model and represent unit fractions including 1/2, 1/4, 1/3, 1/5 and their multiples to a complete whole (ACMNA058)

LO: To model and represent common fractions.
Know:

  • the structure of a fraction
  • what a numerator in a fraction represents (they are the pieces of a whole)
  • what a denominator in a fraction represents (they are the total pieces that make a whole)

Understand:

  • that fractions have individual values which are less than a whole piece.

Do:

  • I can model and represent unit fractions.

What are Fractions?

The numerator is the top number of a fraction, it represents how many pieces out of the whole there are.

The denominator is the bottom number of a fraction and it represents how many total pieces there are in a whole piece.


Halves

This fraction is a half.

It shows that 1 piece out of the 2 is coloured in.

So 1 is the numerator and 2 is the denominator.

Two-halves make a whole.


Thirds

This fraction is a third.

It shows that 1 piece out of the 3 is coloured in.

So 1 is the numerator and 3 is the denominator.

Three 1/3 pieces make a whole piece.


Quarters

This fraction is a quarter.

It shows that 1 piece out of the 4 is coloured in.

So 1 is the numerator and 4 is the denominator.

Two quarter pieces make a half and it takes four quarter pieces to make a whole.


Fifths

This fraction is a fifth.

It shows that 1 piece out of the 5 is coloured in.

So 1 is the numerator and 5 is the denominator.

Five 1/5 pieces make a whole piece.


Teaching Ideas

ACARA Work Samples

Fractions Videos