Maths topic
Fractions
What children learn in fractions, from their first year of school to the end of primary, and the lessons to watch together.
What's taught, year by year
The steps in fractions, in the order children usually meet them. Years are named as in Australia; the ages are a guide.
Before school ages 3–5
- Share things fairly between two. Share a small collection so that two people get the same amount.
Year 1 ages 6–7
- Equal and unequal parts. Tell whether a shape or object has been cut into equal parts or not.
- Find half of a shape or object. Split a shape or object into two equal parts and name each part a half.
- Find half of a set of objects. Find half of a small group by sharing it into two equal groups.
- Find a quarter of a shape or object. Split a shape into four equal parts and name each part a quarter.
- Find a quarter of a set of objects. Find a quarter of a small group by sharing it into four equal groups.
Year 2 ages 7–8
- Halves, quarters and eighths by halving again. Fold or cut a whole in half, then half again, to make quarters and eighths.
- Thirds of shapes and sets. Split a shape or a group into three equal parts and name each part a third.
- Read and write fractions with numbers. Write a fraction as a numerator over a denominator and say what each part means.
- Two-quarters and three-quarters. Show 2/4 and 3/4 of a shape or set by shading more than one part.
- A half is the same as two quarters. Show with shapes and strips that 1/2 and 2/4 cover the same amount.
- Fraction parts that make a whole. Recognise that two halves, three thirds or four quarters make one whole.
Year 3 ages 8–9
- Unit fractions with denominators up to 10. Name and show unit fractions such as 1/5, 1/6, 1/8 and 1/10 of a whole.
- Non-unit fractions as groups of unit fractions. See 3/5 as three lots of 1/5 and shade it on a shape or strip.
- Fractions on a number line from 0 to 1. Mark unit and non-unit fractions on a number line split into equal parts.
- Compare unit fractions. Explain why 1/8 is smaller than 1/4: more equal parts means smaller parts.
- Compare and order fractions with the same denominator. Order fractions like 2/7, 5/7 and 3/7 by comparing numerators.
- Whole numbers written as fractions. Recognise that 4/4 = 1 and 6/2 = 3 and show them on a number line.
- Equivalent fractions with a fraction wall. Use a fraction wall to find fractions that are the same size, like 2/6 and 1/3.
- Unit fraction of an amount. Find 1/3 of 12 or 1/5 of 40 by dividing by the denominator.
- Add and subtract fractions with the same denominator. Add or take away fractions like 2/5 + 1/5 within one whole.
Year 4 ages 9–10
- Count in fractions past one. Count forwards and backwards in halves, quarters or thirds beyond one whole.
- Mixed numbers and improper fractions. Convert between improper fractions like 7/4 and mixed numbers like 1 3/4.
- Make equivalent fractions by multiplying. Multiply or divide the numerator and denominator by the same number.
- Compare fractions with related denominators. Compare fractions such as 3/4 and 5/8 by renaming one of them.
- Split a fraction into a sum of fractions. Write 5/6 as 1/6 + 4/6 or 2/6 + 3/6 in several ways.
- Add and subtract like fractions beyond one whole. Add or subtract fractions with the same denominator, including mixed numbers.
- Non-unit fraction of an amount. Find 2/3 of 24 or 3/8 of 48 by finding one part first.
- Find the whole from a fraction. Work out the whole set when a fraction of it is known, using a bar model.
Year 5 ages 10–11
- Multiply a fraction by a whole number. Work out 3 x 2/5 as repeated addition of a fraction.
- Compare fractions with unlike denominators. Compare fractions using a common denominator or the benchmark of one half.
- Simplify fractions. Write a fraction in its simplest form by dividing by a common factor.
- Add and subtract fractions with related denominators. Add fractions like 1/2 + 3/8 by renaming one fraction first.
- Add and subtract fractions with different denominators. Use a common denominator to add or subtract fractions like 2/3 + 1/4.
- Add and subtract mixed numbers. Add or subtract mixed numbers, regrouping wholes when needed.
- A fraction is a division. Read 3/4 as 3 divided by 4 and share 3 things among 4 people.
- Multiply a fraction by a fraction. Find 2/3 of 3/4 using an area model and multiply numerators and denominators.
- Multiplying by a fraction makes it smaller or bigger. Predict whether a product grows or shrinks when multiplying by a fraction.
Year 6 ages 11–12
- Divide a fraction by a whole number. Share a fraction like 1/3 equally into 2 parts and write 1/6.
- Divide a whole number by a unit fraction. Find how many quarters are in 3 wholes and write 3 / (1/4) = 12.
- Divide a fraction by a fraction. Use diagrams and common denominators to divide one fraction by another.
- Fraction of a remainder problems with bar models. Solve two-step problems where a fraction is taken from what is left over.