Can you spot circles, spirals and other types of curves in these photos?

An investigation looking at doing and undoing mathematical operations focusing on doubling, halving, adding and subtracting.

This problem is designed to help children to learn, and to use, the two and three times tables.

Can you make arrange Cuisenaire rods so that they make a 'spiral' with right angles at the corners?

Explore Alex's number plumber. What questions would you like to ask? What do you think is happening to the numbers?

Can you make a spiral for yourself? Explore some different ways to create your own spiral pattern and explore differences between different spirals.

Generate three random numbers to determine the side lengths of a triangle. What triangles can you draw?

How many winning lines can you make in a three-dimensional version of noughts and crosses?

How have "Warmsnug" arrived at the prices shown on their windows? Which window has been given an incorrect price?

What shapes should Elly cut out to make a witch's hat? How can she make a taller hat?

Moiré patterns are intriguing interference patterns. Create your own beautiful examples using LOGO!

Can you make sense of the three methods to work out the area of the kite in the square?

Look for the common features in these graphs. Which graphs belong together?

Explore the properties of these two fascinating functions using trigonometry as a guide.

A collection of problems related to the mathematics of fundamental physics.

Given a set of points (x,y) with distinct x values, find a polynomial that goes through all of them, then prove some results about the existence and uniqueness of these polynomials.

Lots of very good ideas that caused pupils to think and problem solve in what was probably a new area of Mathematics

A few thoughtful solutions here where pupils have thought carefully about the angles that they had observed.

This was a very popular problem - all four parts were tackled in a logical and systematic way.

The cipher challenge from the February month has now been solved fully. Read the solutions to the 7 ciphers here.

In this article for teachers, Liz Woodham describes the criteria she uses to choose mathematical games for the classroom and shares some examples from NRICH.

This is a game in which your counters move in a spiral round the snail's shell. It is about understanding tens and units.

Here are a collection of games from around the world to try during the holidays or the last few weeks of term.

We need computer programmers! Logo is a great entry-level programming language - and you can create stunning graphics while you learn.

A introduction to how patterns can be deceiving, and what is and is not a proof.