Year 5 maths: make sense of measurements before the summer holidays

As the summer holidays approach, practical maths can offer a welcome change from written exercises. For a Year 5 pupil, measuring ingredients or planning a picnic drink provides a clear reason to think about grams, millilitres and centimetres.

The aim is not to fill July with extra schoolwork. It is to find out whether your child understands what a measurement means, then practise one useful step. Choose a relaxed moment, use equipment you already have and stop after about ten minutes.

1. Estimate before reaching for a measuring tool

Begin with three familiar objects: a pencil, a water bottle and a bag of rice. Ask which unit would make sense for measuring each object's length, capacity or mass.

Then invite an estimate. “Do you think this pencil is closer to 15 centimetres or 15 metres?” is more helpful than asking for a perfectly accurate guess. Your child should explain why one answer sounds reasonable.

Check one estimate together with a ruler, jug or kitchen scales. If the result is surprising, discuss the size of the unit rather than treating the estimate as a mistake.

Keep this first activity separate from conversions. A child who cannot picture a litre needs that reference point before comparing litres with millilitres.

2. Connect conversions to quantities they can see

Write down three relationships: 1 metre equals 100 centimetres, 1 kilogram equals 1,000 grams, and 1 litre equals 1,000 millilitres. Choose just one to explore first.

For capacity, measure 500 millilitres of water into a jug. Ask how many of those amounts would make a litre. Then connect the answer to the written statement: 500 millilitres equals 0.5 litres.

Try one comparison, such as 750 millilitres and 1 litre. Ask your child to express both in millilitres before deciding which is larger.

Avoid teaching conversions as simply adding or removing zeros. Instead, ask: “Are we counting larger units or smaller units?” Converting litres into millilitres produces a larger number because each unit is smaller.

3. Scale a simple summer recipe together

Use an imagined fruit drink recipe for two people: 300 millilitres of juice and 200 millilitres of water. Ask your child to work out the amounts for four people.

A useful response includes both the calculation and its meaning: “There are twice as many people, so we need 600 millilitres of juice and 400 millilitres of water.”

Next, ask whether the mixture would fit into a 1 litre jug. The total is 1,000 millilitres, so it reaches the jug's stated capacity, with no spare room for stirring or ice.

If doubling feels difficult, draw two identical recipes side by side. If it feels secure, calculate the quantities for one person instead.

4. Finish with one independent check

Give your child a fresh question without demonstrating it first: “A picnic needs 1 litre of water. We have 650 millilitres. How much more do we need?”

Ask them to show their thinking and include the unit. The answer is 350 millilitres. Notice whether any difficulty comes from conversion, subtraction or interpreting the question, since each needs different support.

End by naming something specific they managed independently. If confusion keeps returning, GoodGrade Tutors offers one to one support online across the UK and in person in selected areas. Take the free 2 minute quiz to explore support suited to your child.