Place Your Orders
Age 11 to 14
Challenge Level
Can you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?
Friday 13th
Age 11 to 14
Challenge Level
Can you explain why every year must contain at least one Friday the thirteenth?
Mathematical Modelling - Short Problems
Age 11 to 16
A collection of short Stage 3 and 4 problems on Mathematical Modelling.
Cuboid Challenge
Age 11 to 16
Challenge Level
What's the largest volume of box you can make from a square of paper?
Disease Dynamics - understanding the spread of diseases
Age 14 to 16
A chance to explore the mathematics of networks as applied to epidemics and the spread of disease.
Speed-time Problems at the Olympics
Age 14 to 16
Challenge Level
Have you ever wondered what it would be like to race against Usain Bolt?
Slippage
Age 14 to 16
Challenge Level
A ladder 3m long rests against a wall with one end a short distance from its base. Between the wall and the base of a ladder is a garden storage box 1m tall and 1m high. What is the maximum distance up the wall which the ladder can reach?
Where to Land
Age 14 to 16
Challenge Level
Chris is enjoying a swim but needs to get back for lunch. How far along the bank should she land?
What's That Graph?
Age 14 to 18
Challenge Level
Can you work out which processes are represented by the graphs?
Dangerous Driver?
Age 16 to 18
Challenge Level
Was it possible that this dangerous driving penalty was issued in error?
10 Olympic Starters
Age 16 to 18
Challenge Level
10 intriguing starters related to the mechanics of sport.
Big and Small Numbers in Physics - Group Task
Age 16 to 18
Challenge Level
Work in groups to try to create the best approximations to these physical quantities.
The Not-so-simple Pendulum 1
Age 16 to 18
Challenge Level
See how the motion of the simple pendulum is not-so-simple after all.
NRICH is part of the family of activities in the Millennium Mathematics Project.