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problem

Favourite

What's in a Name?

5 to 7

What do you notice about these squares of numbers? What is the same? What is different?

problem

Favourite

Three Squares

5 to 11

What is the greatest number of squares you can make by overlapping three squares?

problem

Favourite

Journeys in Numberland

7 to 11

Tom and Ben visited Numberland. Use the maps to work out the number of points each of their routes scores.

problem

Three Way Mix Up

5 to 11

Jack has nine tiles. He put them together to make a square so that two tiles of the same colour were not beside each other. Can you find another way to do it?

problem

Favourite

Reaction Timer

11 to 14

This problem offers you two ways to test reactions - use them to investigate your ideas about speeds of reaction.

article

Using Non-Standard Problems to Challenge Pre-Conceptions

This paper explores the value of using problems as a way of challenging children’s mathematical pre-conceptions and problems' potential for extending their knowledge and understanding. It considers some non-standard problems taken from the NRICH website and examines them in the light of children's solutions and what children have said, or implied, about their thinking.