Ratio is usually covered in Year 6 at primary school but can be a tricky concept to understand. Ratio compares things; it tells you how much of one thing there is compared to another. For example, 1:3 means for every 1 of one thing, there is 3 of another.
Take a look at the video below to see a practical activity that you could use when introducing children to ratio and helping them to understand what it means.
