Savile Park Primary School

Headteacher: Mrs J Boylan

Ratio and Proportion

In Year 6, your child will find missing values using ratios. They will also solve ratio problems involving percentages, pie charts, multiplication, and division.

How to help at home

There are lots of ways you can help your child to understand ratio and proportion. Here are just a few ideas.

 

1. Explore ratio

The concept of ratio is used in many daily activities such as cooking, using maps, or reading scale drawings. It can be very helpful to talk to your child about where and why we use ratio in our daily lives. For example:

A flapjack recipe requires 240g of oats. This makes 18 flapjacks. What quantity of oats is needed to make 24 flapjacks?

The ratio 240:18 can be established, and used to come to the answer 320g.

These types of problems will provide the foundation for formal approaches to ratio and proportion they will come across later – and you are bound to keep your child interested in ratios if you use them to make flapjacks!

While using ratios with your child, it is worth talking about the difference between ratio and proportion. The concepts are similar but subtly different, and using accurate terms will help your child’s maths skills later on:

  • Ratio tells us how much of one thing there is in relation to another thing. For example, ‘For every 2 apples we have 3 bananas’.
  • Proportion tells us about how much of one thing there is in relation to the whole amount of something. For example, ‘There are 50 pieces of fruit, and 1 in every 5 of those is an apple.’

 

2. Find percentages in real life

There are percentages to explore everywhere in the real world. For example, what percentage of your child’s class are girls? If there is 25% off the cost of something at the shops, how much money are you saving? Can you then subtract this to find out the new price?

Your child could do a survey with friends and family. For example, they could ask everyone what their favourite food is and then work out the percentage of people that chose each type of food.

3. Play the matching card game

Create some simple cards showing problems such as 15% of 300, then write the answers to the problems on other cards. Use the cards to play pairs or snap, or just challenge your child to find the correct answer to each problem from the answer pile.

If your child has siblings, adding a bit of healthy competition to this game could help them get flying in no time!

4. Get creative

Salt dough craft activity is a fun way to make decorations or ornaments and practise measuring and using ratios while you are at it.