Gillian Hatch analyses what goes on when mathematical games are used as a pedagogic device.

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?

Spiralling Decimals game for an adult and child. Can you get three decimals next to each other on the spiral before your partner?

This article, the second in the series, looks at some different types of games and the sort of mathematical thinking they can develop.

This article supplies teachers with information that may be useful in better understanding the nature of games and their role in teaching and learning mathematics.

A game for 2 players. Take turns to place a counter so that it occupies one of the lowest possible positions in the grid. The first player to complete a line of 4 wins.

A game for 2 players. This could be played outside with people instead of counters. Try to trap or escape from your opponent.

A game for 2 players. Draw a daisy with at least 5 petals. Shade 1 or 2 petals next to each other. The winner shades the last petal.

A game for 1 person to develop stategy and shape and space awareness. 12 counters are placed on a board. Counters are removed one at a time. The aim is to be left with only 1 counter.

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

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.

Everthing you have always wanted to do with dominoes! Some of these games are good for practising your mental calculation skills, and some are good for your reasoning skills.

What might your first lesson with a new class look like? In this article, Cherri Moseley makes some suggestions for primary teachers.

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

This article outlines how strategy games can help children develop logical thinking, using examples from the NRICH website.

Here are some more upper primary strategy games for you to play.

Who said that adding, subtracting, multiplying and dividing couldn't be fun?

Here are some games for you to play with an adult. They are all based on popular NRICH games.

Board Block Challenge game for an adult and child. Can you prevent your partner from being able to make a shape?

Totality game for an adult and child. Be the first to reach your agreed total.

Incey Wincey Spider game for an adult and child. Will Incey get to the top of the drainpipe?

Play this well-known game against the computer where each player is equally likely to choose scissors, paper or rock. Why not try the variations too?

An interactive activity for one to experiment with a tricky tessellation

Solve this Sudoku puzzle whose clues are in the form of sums of the numbers which should appear in diagonal opposite cells.

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

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. . . .

You'll need two dice to play this game against a partner. Will Incey Wincey make it to the top of the drain pipe or the bottom of the drain pipe first?

Nim-7 game for an adult and child. Who will be the one to take the last counter?

Seeing Squares game for an adult and child. Can you come up with a way of always winning this game?

Take it in turns to place a domino on the grid. One to be placed horizontally and the other vertically. Can you make it impossible for your opponent to play?

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

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

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

A game for 2 players with similarities to NIM. Place one counter on each spot on the games board. Players take it is turns to remove 1 or 2 adjacent counters. The winner picks up the last counter.

Here is a chance to play a version of the classic Countdown Game.

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

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

A game for two people, who take turns to move the counters. The player to remove the last counter from the board wins.

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.

Can you work out how to win this game of Nim? Does it matter if you go first or second?

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

This is a game for two players. Can you find out how to be the first to get to 12 o'clock?

Take it in turns to make a triangle on the pegboard. Can you block your opponent?