Do you know which birds are regular visitors where you live?

Build a mini eco-system, and collect and interpret data on how well the plants grow under different conditions.

This problem offers you two ways to test reactions - use them to investigate your ideas about speeds of reaction.

Investigate how avalanches occur and how they can be controlled

How does the time of dawn and dusk vary? What about the Moon, how does that change from night to night? Is the Sun always the same? Gather data to help you explore these questions.

Substitution and Transposition all in one! How fiendish can these codes get?

How can people be divided into groups fairly for events in the Paralympics, for school sports days, or for subject sets?

Can you make sense of the charts and diagrams that are created and used by sports competitors, trainers and statisticians?

Which countries have the most naturally athletic populations?

Is it the fastest swimmer, the fastest runner or the fastest cyclist who wins the Olympic Triathlon?

With access to weather station data, what interesting questions can you investigate?

How can we make sense of national and global statistics involving very large numbers?

A maths-based Football World Cup simulation for teachers and students to use.

Making a scale model of the solar system

When Charlie retires, he's looking forward to the quiet life, whereas Alison wants a busy and exciting retirement. Can you advise them on where they should go?

Here is the start of a six-part challenge. Can you get to the end and crack the final message?

In the ancient city of Atlantis a solid rectangular object called a Zin was built in honour of the goddess Tina. Your task is to determine on which day of the week the obelisk was completed.

Find the frequency distribution for ordinary English, and use it to help you crack the code.

Can you make sense of the charts and diagrams that are created and used by sports competitors, trainers and statisticians?

Design and test a paper helicopter. What is the best design?

Six samples were taken from two distributions but they got muddled up. Can you work out which list is which?

Infographics are a powerful way of communicating statistical information. Can you come up with your own?

How well can you estimate 10 seconds? Investigate with our timing tool.

In a league of 5 football teams which play in a round robin tournament show that it is possible for all five teams to be league leaders.