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Secret Number
5 to 7
Annie and Ben are playing a game with a calculator. What was Annie's secret number?
problem
Four in a Row
11 to 14
Where should black play in this game of four-in-a-row to be certain of winning on her next move?
problem
Arsenal Collection: Football Logic
11 to 16
Can you use your powers of logic and deduction to work out the missing information in these situations?
problem
Probably...
7 to 11
You'll need to work in a group for this problem. The idea is to decide, as a group, whether you agree or disagree with each statement.
problem
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Non-Transitive Dice
11 to 14
Alison and Charlie are playing a game. Charlie wants to go first so Alison lets him. Was that such a good idea?
article
NRICHing Mathematics in Haringey
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.
problem
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Classic Problem - Tower of Hanoi
14 to 16
The Tower of Hanoi is an ancient mathematical challenge.
problem
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Snooker Frames
16 to 18
It is believed that weaker snooker players have a better chance of winning matches over eleven frames (i.e. first to win 6 frames) than they do over fifteen frames. Is this true?