Many natural systems appear to be in equilibrium until suddenly a critical point is reached, setting up a mudslide or an avalanche or an earthquake. In this project, students will use a simple. . . .

The computer starts with all the lights off, but then clicks 3, 4 or 5 times at random, leaving some lights on. Can you switch them off again?

Hover your mouse over the counters to see which ones will be removed. Click to remover them. The winner is the last one to remove a counter. How you can make sure you win?

In this game for two players, you throw two dice and find the product. How many shapes can you draw on the grid which have that area or perimeter?

In this game for two players, the idea is to take it in turns to choose 1, 3, 5 or 7. The winner is the first to make the total 37.

Unmultiply is a game of quick estimation. You need to find two numbers that multiply together to something close to the given target - fast! 10 levels with a high scores table.

Advent Calendar 2010 - a mathematical game for every day during the run-up to Christmas.

Can you make the birds from the egg tangram?

A game for 2 people. Use your skills of addition, subtraction, multiplication and division to blast the asteroids.

Here is a version of the game 'Happy Families' for you to make and play.

Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.

A game to make and play based on the number line.

Use the tangram pieces to make our pictures, or to design some of your own!

In this matching game, you have to decide how long different events take.

Basic strategy games are particularly suitable as starting points for investigations. Players instinctively try to discover a winning strategy, and usually the best way to do this is to analyse. . . .

A simple game of patience which often comes out. Can you explain why?

A game for 2 players. Practises subtraction or other maths operations knowledge.

A game for 2 people. Take turns placing a counter on the star. You win when you have completed a line of 3 in your colour.

Strike it Out game for an adult and child. Can you stop your partner from being able to go?

Practise your diamond mining skills and your x,y coordination in this homage to Pacman.

Work out the fractions to match the cards with the same amount of money.

A game for 2 people using a pack of cards Turn over 2 cards and try to make an odd number or a multiple of 3.

A game for 2 or more people. Starting with 100, subratct a number from 1 to 9 from the total. You score for making an odd number, a number ending in 0 or a multiple of 6.

A shunting puzzle for 1 person. Swop the positions of the counters at the top and bottom of the board.

An ordinary set of dominoes can be laid out as a 7 by 4 magic rectangle in which all the spots in all the columns add to 24, while those in the rows add to 42. Try it! Now try the magic square...

A game for 2 or more people, based on the traditional card game Rummy. Players aim to make two `tricks', where each trick has to consist of a picture of a shape, a name that describes that shape, and. . . .

A game for 2 players. Given an arrangement of matchsticks, players take it is turns to remove a matchstick, along with all of the matchsticks that touch it.

This is a game for two players. You will need some small-square grid paper, a die and two felt-tip pens or highlighters. Players take turns to roll the die, then move that number of squares in. . . .

The game uses a 3x3 square board. 2 players take turns to play, either placing a red on an empty square, or changing a red to orange, or orange to green. The player who forms 3 of 1 colour in a line. . . .

Can you spot the similarities between this game and other games you know? The aim is to choose 3 numbers that total 15.

Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.

A game for 2 or more players with a pack of cards. Practise your skills of addition, subtraction, multiplication and division to hit the target score.

The aim of the game is to slide the green square from the top right hand corner to the bottom left hand corner in the least number of moves.

This is a challenging game of strategy for two players with many interesting variations.

A game for 1 or 2 people. Use the interactive version, or play with friends. Try to round up as many counters as possible.

An article for teachers and pupils that encourages you to look at the mathematical properties of similar games.

Here is a solitaire type environment for you to experiment with. Which targets can you reach?

This is a game for 2 players. Each player has 4 counters each, and wins by blocking their opponent's counters. A good follow-on from two stones.

This pair of linked Sudokus matches letters with numbers and hides a seasonal greeting. Can you find it?

A game that tests your understanding of remainders.

Some Games That May Be Nice or Nasty for an adult and child. Use your knowledge of place value to beat your oponent.

Train game for an adult and child. Who will be the first to make the train?

Factors and Multiples game for an adult and child. How can you make sure you win this game?

Dicey Operations for an adult and child. Can you get close to 1000 than your partner?

Take turns to place a decimal number on the spiral. Can you get three consecutive numbers?