Matching Triangles
Age 5 to 7
Challenge Level
Can you sort these triangles into three different families and explain how you did it?
Always, Sometimes or Never? KS1
Age 5 to 7
Challenge Level
Are these statements relating to calculation and properties of shapes always true, sometimes true or never true?
Square Corners
Age 7 to 11
Challenge Level
What is the greatest number of counters you can place on the grid below without four of them lying at the corners of a square?
Egyptian Rope
Age 7 to 11
Challenge Level
The ancient Egyptians were said to make right-angled triangles using a rope with twelve equal sections divided by knots. What other triangles could you make if you had a rope like this?
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.