Use the grids to draw pictures to different scales.
The triangles in these sets are similar - can you work out the lengths of the sides which have question marks?
Can you decide whose drink has the strongest blackcurrant flavour from these pictures?
An article for teachers which discusses the differences between ratio and proportion, and invites readers to contribute their own thoughts.
Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
The Man is much smaller than us. Can you use the picture of him next to a mug to estimate his height and how much tea he drinks?
Read all about the number pi and the mathematicians who have tried to find out its value as accurately as possible.
Use the Cuisenaire rods environment to investigate ratio. Can you find pairs of rods in the ratio 3:2?
Mum, Dad, Tim and Jill moved into a new house. If they cut down the big tree, will it miss the greenhouse?
Can you work out the height of Baby Bear's chair and whose bed is whose if all the things the three bears have are in the same proportions?
Sam's grandmother has an old recipe for cherry buns. She has enough mixture to put 45 grams in each of 12 paper cake cases. What was the weight of one egg?
Peter wanted to make two pies for a party. His mother had a recipe for him to use. However, she always made 80 pies at a time. Did Peter have enough ingredients to make two pumpkin pies?
Use the ratio of cashew nuts to peanuts to find out how many peanuts Rachel has. What would the ratio be if Rachel and Marianne mixed their bags?
A 750 ml bottle of concentrated orange squash is enough to make fifteen 250 ml glasses of diluted orange drink. How much water is needed to make 10 litres of this drink?
Making a scale model of the solar system