Curve Hunter
Age 14 to 18
Challenge Level
This problem challenges you to sketch curves with different properties.
Exploring Cubic Functions
Age 14 to 18
Challenge Level
Quadratic graphs are very familiar, but what patterns can you explore with cubics?
Curve Fitter
Age 14 to 18
Challenge Level
This problem challenges you to find cubic equations which satisfy different conditions.
In the Bag
Age 11 to 14
Challenge Level
Can you guess the colours of the 10 marbles in the bag? Can you develop an effective strategy for reaching 1000 points in the least number of rounds?
What Does Random Look Like?
Age 11 to 14
Challenge Level
Engage in a little mathematical detective work to see if you can spot the fakes.
The Farmers' Field Boundary
Age 11 to 14
Challenge Level
The farmers want to redraw their field boundary but keep the area the same. Can you advise them?
The Better Choice
Age 14 to 16
Challenge Level
Here are two games you can play. Which offers the better chance of winning?
Last One Standing
Age 14 to 16
Challenge Level
Imagine a room full of people who keep flipping coins until they get a tail. Will anyone get six heads in a row?
NRICH is part of the family of activities in the Millennium Mathematics Project.