Explaining, convincing and proving

This group activity will encourage you to share calculation strategies and to think about which strategy might be the most efficient.

What statements can you make about the car that passes the school gates at 11am on Monday? How will you come up with statements and test your ideas?

Tom and Ben visited Numberland. Use the maps to work out the number of points each of their routes scores.

Watch the video to see how to fold a square of paper to create a flower. What fraction of the piece of paper is the small triangle?

Take a look at these data collected by children in 1986 as part of the Domesday Project. What do they tell you? What do you think about the way they are presented?

Looking at the Olympic Medal table, can you see how the data is organised? Could the results be presented differently to give another nation the top place?

This problem shows that the external angles of an irregular hexagon add to a circle.

Would you rather: Have 10% of £5 or 75% of 80p? Be given 60% of 2 pizzas or 26% of 5 pizzas?

In this game the winner is the first to make the total 37. Is this a fair game?

Can you sketch triangles that fit in the cells in this grid? Which ones are impossible? How do you know?