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:
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the structure of a fraction
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what a numerator in a fraction represents (they are the pieces of a whole)
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what a denominator in a fraction represents (they are the total pieces that make a whole)
Understand:
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that fractions have individual values which can be used in everyday life.
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that the more parts a quantity is divided into, the smaller the pieces become. (larger the denominator, smaller the parts)
Do:
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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
