A simple spinner that is equally likely to land on Red or Black. Useful if tossing a coin, dropping it, and rummaging about on the floor have lost their appeal. Needs a modern browser; if IE then at. . . .
Use this animation to experiment with lotteries. Choose how many
balls to match, how many are in the carousel, and how many draws to
make at once.
Can you beat Piggy in this simple dice game? Can you figure out
Piggy's strategy, and is there a better one?
A metal puzzle which led to some mathematical questions.
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?
The classic vector racing game brought to a screen near you.
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
This game challenges you to locate hidden triangles in The White
Box by firing rays and observing where the rays exit the Box.
A collection of our favourite pictorial problems, one for each day
Help the bee to build a stack of blocks far enough to save his
friend trapped in the tower.
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 tool for generating random integers.
Square It game for an adult and child. Can you come up with a way of always winning this game?
An environment that enables you to investigate tessellations of
Use the interactivity or play this dice game yourself. How could
you make it fair?
Cellular is an animation that helps you make geometric sequences composed of square cells.
Try out the lottery that is played in a far-away land. What is the
chance of winning?
Terry and Ali are playing a game with three balls. Is it fair that
Terry wins when the middle ball is red?
Play a dice game of chance
A game for 2 players. Can be played online. One player has 1 red
counter, the other has 4 blue. The red counter needs to reach the
other side, and the blue needs to trap the red.
A simulation of target archery practice
There are three versions of this challenge. The idea is to change the colour of all the spots on the grid. Can you do it in fewer throws of the dice?
Explore this interactivity and see if you can work out what it
does. Could you use it to estimate the area of a shape?
Interactive game. Set your own level of challenge, practise your table skills and beat your previous best score.
Can you spot the similarities between this game and other games you know? The aim is to choose 3 numbers that total 15.
An animation that helps you understand the game of Nim.
Play this well-known game against the computer where each player is
equally likely to choose scissors, paper or rock. Why not try the
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.
Overlaying pentominoes can produce some effective patterns. Why not
use LOGO to try out some of the ideas suggested here?
Work out how to light up the single light. What's the rule?
A game for 1 person to play on screen. Practise your number bonds
whilst improving your memory
Arrange any number of counters from these 18 on the grid to make a rectangle. What numbers of counters make rectangles? How many different rectangles can you make with each number of counters?
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....?
Here are some rods that are different colours. How could I make a dark green rod using yellow and white rods?
Can you see why 2 by 2 could be 5? Can you predict what 2 by 10
Start by putting one million (1 000 000) into the display of your
calculator. Can you reduce this to 7 using just the 7 key and add,
subtract, multiply, divide and equals as many times as you like?
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?
How many right angles can you make using two sticks?
Work out the fractions to match the cards with the same amount of
Can you work out how to balance this equaliser? You can put more
than one weight on a hook.
Match the halves.
Can you find just the right bubbles to hold your number?
If there are 3 squares in the ring, can you place three different numbers in them so that their differences are odd? Try with different numbers of squares around the ring. What do you notice?
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?
Can you fit the tangram pieces into the outlines of these people?
Can you fit the tangram pieces into the outline of this brazier for roasting chestnuts?
Can you fit the tangram pieces into the outline of Little Fung at the table?
Can you fit the tangram pieces into the outline of this telephone?
Can you fit the tangram pieces into the outlines of these clocks?
Can you fit the tangram pieces into the outline of the child walking home from school?