Common Uses of Halves Quarters and Eighths of Shapes (2)

Recognise and interpret common uses of halves, quarters and eighths of shapes and collections (ACMNA033)

LO: To model and represent common uses of halves, quarters and eighths.

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 can be used in everyday life.

  • that the more parts a quantity is divided into, the smaller the pieces become. (larger the denominator, smaller the parts)

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 here are.

The denominator is the bottom number of a fraction and it represents how many pieces make up the whole piece.

The bigger the denominator the smaller each piece becomes.

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.

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 4 quarter pieces to make a whole.

Eighths

This fraction is an eighth.

It shows that 1 piece out of the 8 is coloured in.

So 1 is the numerator and 8 is the denominator.

Eight 1/8 pieces make a whole piece.

Teaching Ideas

Interactives

Fractions Videos

MathisFun
Next lesson