Can you fill in the empty boxes in the grid with the right shape and colour?
Have a look at what happens when you pull a reef knot and a granny knot tight. Which do you think is best for securing things together? Why?
Use the interactivity to find out how many quarter turns the man must rotate through to look like each of the pictures.
Can you fit the tangram pieces into the outlines of the numbers?
What two-digit numbers can you make with these two dice? What can't you make?
This article for teachers describes a joint project in 2007/8 with Haringey Local Authority and NRICH to support improving using and applying mathematics, reasoning and creativity.
Try entering different sets of numbers in the number pyramids. How does the total at the top change?
