A game in which players take it in turns to choose a number. Can you block your opponent?

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

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

A game for 2 people that everybody knows. You can play with a friend or online. If you play correctly you never lose!

A game in which players take it in turns to try to draw quadrilaterals (or triangles) with particular properties. Is it possible to fill the game grid?

A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.

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

The idea of this game is to add or subtract the two numbers on the dice and cover the result on the grid, trying to get a line of three. Are there some numbers that are good to aim for?

Collect as many diamonds as you can by drawing three straight lines.

A game in which players take it in turns to turn up two cards. If they can draw a triangle which satisfies both properties they win the pair of cards. And a few challenging questions to follow...

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

Can you make the birds from the egg tangram?

A game that tests your understanding of remainders.

Two sudokus in one. Challenge yourself to make the necessary connections.

A Sudoku that uses transformations as supporting clues.

An interactive activity for one to experiment with a tricky tessellation

This sudoku requires you to have "double vision" - two Sudoku's for the price of one

A game for 2 people that can be played on line or with pens and paper. Combine your knowledege of coordinates with your skills of strategic thinking.

This second Sudoku article discusses "Corresponding Sudokus" which are pairs of Sudokus with terms that can be matched using a substitution rule.

A game for 2 players that can be played online. Players take it in turns to select a word from the 9 words given. The aim is to select all the occurrences of the same letter.

Two sudokus in one. Challenge yourself to make the necessary connections.

Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?

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

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

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

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

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.

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

An interactive game for 1 person. You are given a rectangle with 50 squares on it. Roll the dice to get a percentage between 2 and 100. How many squares is this? Keep going until you get 100. . . .

A game for 1 person to play on screen. Practise your number bonds whilst improving your memory

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. . . .

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

Try to stop your opponent from being able to split the piles of counters into unequal numbers. Can you find a strategy?

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

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.

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. . . .

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.

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.

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

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.

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.

A game for two or more players that uses a knowledge of measuring tools. Spin the spinner and identify which jobs can be done with the measuring tool shown.

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