Some puzzles requiring no knowledge of knot theory, just a careful inspection of the patterns. A glimpse of the classification of knots and a little about prime knots, crossing numbers and. . . .
Can you reproduce the Yin Yang symbol using a pair of compasses?
Can you devise the most efficient strategy for finding the highest floor from which you can drop an egg safely?
Charlie thinks that a six comes up less often than the other numbers on the dice. Have a look at the results of the test his class did to see if he was right.
You Never Get A Six - December 2007
Use the interactivity to listen to the bells ringing a pattern. Now it's your turn! Play one of the bells yourself. How do you know when it is your turn to ring?
Can you create a story that would describe the movement of the man shown on these graphs? Use the interactivity to try out our ideas.
In this article, Janine Davenall reflects on children’s personalised mathematical recordings as part of a small research project based in her Reception class.
Think of a number and follow the machine's instructions... I know what your number is! Can you explain how I know?
Think of a number and follow my instructions. Tell me your answer, and I'll tell you what you started with! Can you explain how I know?
Recently solved Stage 3 & 4 problems.
Recently solved Stage 4 and 5 solutions.