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

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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.

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Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?

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Move just three of the circles so that the triangle faces in the opposite direction.

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What is the greatest number of squares you can make by overlapping three squares?

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Investigate how the four L-shapes fit together to make an enlarged L-shape. You could explore this idea with other shapes too.

The 2012 primary advent calendar features twenty-four of our posters, one for each day in the run-up to Christmas.

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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.

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A game for two people that can be played with pencils and paper. Combine your knowledge of coordinates with some strategic thinking.

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Can you put the 25 coloured tiles into the 5 x 5 square so that no column, no row and no diagonal line have tiles of the same colour in them?

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There are nine teddies in Teddy Town - three red, three blue and three yellow. There are also nine houses, three of each colour. Can you put them on the map of Teddy Town according to the rules?

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Choose the size of your pegboard and the shapes you can make. Can you work out the strategies needed to block your opponent?

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

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A train building game for two players. Can you be the one to complete the train?

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How many different triangles can you make on a circular pegboard that has nine pegs?

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Calculate the fractional amounts of money to match pairs of cards with the same value.

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Practise your number bonds whilst improving your memory in this matching pairs game.

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

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

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Watch this film carefully. Can you find a general rule for explaining when the dot will be this same distance from the horizontal axis?

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Stop the Clock game for an adult and child. How can you make sure you always win this game?

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Board Block game for two. Can you stop your partner from being able to make a shape on the board?

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Use the interactivities to fill in these Carroll diagrams. How do you know where to place the numbers?

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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?

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In this game you are challenged to gain more columns of lily pads than your opponent.

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Practise your tables skills and try to beat your previous best score in this interactive game.

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

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Can you work out how to make each side of this balance equally balanced? You can put more than one weight on a hook.

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Use the interactivity to help get a feel for this problem and to find out all the possible ways the balls could land.

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How many trains can you make which are the same length as Matt's and Katie's, using rods that are identical?

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Here are some rods that are different colours. How could I make a yellow rod using white and red rods?

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Ahmed has some wooden planks to use for three sides of a rabbit run against the shed. What quadrilaterals would he be able to make with the planks of different lengths?

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In this activity, the computer chooses a times table and shifts it. Can you work out the table and the shift each time?

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First Connect Three game for an adult and child. Use the dice numbers and either addition or subtraction to get three numbers in a straight line.

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Place the numbers 1 to 6 in the circles so that each number is the difference between the two numbers just below it.

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Place the numbers 1 to 10 in the circles so that each number is the difference between the two numbers just below it.

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These interactive dominoes can be dragged around the screen.

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This 100 square jigsaw is written in code. It starts with 1 and ends with 100. Can you build it up?

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

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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.

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Is it possible to place 2 counters on the 3 by 3 grid so that there is an even number of counters in every row and every column? How about if you have 3 counters or 4 counters or....?

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Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?

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Can you complete this jigsaw of the multiplication square?

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What shaped overlaps can you make with two circles which are the same size?

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Investigate the smallest number of moves it takes to turn these mats upside-down if you can only turn exactly three at a time.