Use the interactivities to fill in these Carroll diagrams. How do you know where to place the numbers?
How many different shaped boxes can you design for 36 sweets in one layer? Can you arrange the sweets so that no sweets of the same colour are next to each other in any direction?
What is the greatest number of counters you can place on the grid below without four of them lying at the corners of a square?
This is a game for two players. Can you find out how to be the first to get to 12 o'clock?
