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?
Mediant Madness
Age 14 to 16 Challenge Level:
Kyle and his teacher disagree about his test score - who is right?
Farey Neighbours
Age 16 to 18 Challenge Level:
Farey sequences are lists of fractions in ascending order of magnitude. Can you prove that in every Farey sequence there is a special relationship between Farey neighbours?
Ford Circles
Age 16 to 18 Challenge Level:
Can you find the link between these beautiful circle patterns and Farey Sequences?
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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.