Gibraltar Geometry
Age 11 to 14 Challenge Level:
Take a look at the photos of tiles at a school in Gibraltar. What questions can you ask about them?
Triangle Transformation
Age 7 to 14 Challenge Level:
Start with a triangle. Can you cut it up to make a rectangle?
Diminishing Returns
Age 11 to 14 Challenge Level:
How much of the square is coloured blue? How will the pattern continue?
Mixing Paints
Age 11 to 14 Challenge Level:
Can you work out how to produce different shades of pink paint?
Mixing More Paints
Age 14 to 16 Challenge Level:
Can you find an efficent way to mix paints in any ratio?
Vanishing Point
Age 14 to 18 Challenge Level:
How can visual patterns be used to prove sums of series?
Pocket Money
Age 11 to 14 Challenge Level:
Which of these pocket money systems would you rather have?
Farey Sequences
Age 11 to 14 Challenge Level:
There are lots of ideas to explore in these sequences of ordered fractions.
Same Answer
Age 11 to 14 Challenge Level:
Aisha's division and subtraction calculations both gave the same answer! Can you find some more examples?
Mediant Madness
Age 14 to 16 Challenge Level:
Kyle and his teacher disagree about his test score - who is right?
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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.