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Your Number Is...
The Number Jumbler
Your Number Was...
Twisting and Turning
More Twisting and Turning
All Tangled Up
Using Wonder to Promote Curiosity
Using wonder to promote curiosity
As teachers, we often like to share something spectacular with students in order to get a "wow". However, rather than a punchline, this could be the starting point for students to explore and explain, helping them to realise the power of mathematics as a tool to make sense of the world.
Your Number Is... Age 7 to 14Challenge Level 
Age 7 to 14
Challenge Level
Think of a number and follow the machine's instructions... I know what your number is! Can you explain how I know?
The Number Jumbler Age 7 to 14Challenge Level
Age 7 to 14
Challenge Level
The Number Jumbler can always work out your chosen symbol. Can you work out how?
Your Number Was... Age 11 to 14Challenge Level
Age 11 to 14
Challenge Level
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?
Twisting and Turning Age 11 to 14Challenge Level
Age 11 to 14
Challenge Level
Take a look at the video and try to find a sequence of moves that will untangle the ropes.
More Twisting and Turning Age 11 to 16Challenge Level
Age 11 to 16
Challenge Level
It would be nice to have a strategy for disentangling any tangled ropes...
All Tangled Up Age 14 to 18Challenge Level
Age 14 to 18
Challenge Level
Can you tangle yourself up and reach any fraction?