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The Problem-solving Classroom: Key Problem-solving Skills
How Would We Count?
Age 5 to 11
Challenge Level 
An activity centred around observations of dots and how we visualise number arrangement patterns.
Zios and Zepts
Age 7 to 11
Challenge Level
On the planet Vuv there are two sorts of creatures. The Zios have 3 legs and the Zepts have 7 legs. The great planetary explorer Nico counted 52 legs. How many Zios and how many Zepts were there?
Snake Coils
Age 7 to 11
Challenge Level
This challenge asks you to imagine a snake coiling on itself.
Play to 37
Age 7 to 11
Challenge Level
In this game for two players, the idea is to take it in turns to choose 1, 3, 5 or 7. The winner is the first to make the total 37.
Got It
Age 7 to 14
Challenge Level
A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.