A tool for generating random integers.
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.
An environment that enables you to investigate tessellations of
A metal puzzle which led to some mathematical questions.
The classic vector racing game brought to a screen near you.
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.
Square It game for an adult and child. Can you come up with a way of always winning this game?
Can you beat Piggy in this simple dice game? Can you figure out
Piggy's strategy, and is there a better one?
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.
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
Overlaying pentominoes can produce some effective patterns. Why not
use LOGO to try out some of the ideas suggested here?
Cellular is an animation that helps you make geometric sequences
composed of square cells.
Find out how we can describe the "symmetries" of this triangle and
investigate some combinations of rotating and flipping it.
A game for 1 person. Can you work out how the dice must be rolled from the start position to the finish? Play on line.
Create a pattern on the left-hand grid. How could you extend your pattern on the right-hand grid?
Use the interactivity to find out how many quarter turns the man
must rotate through to look like each of the pictures.
If you can post the triangle with either the blue or yellow colour face up, how many ways can it be posted altogether?
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 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.
Can you use the numbers on the dice to reach your end of the number line before your partner beats you?
A shape and space game for 2,3 or 4 players. Be the last person to be able to place a pentomino piece on the playing board. Play with card, or on the computer.
Play a dice game of chance
Investigate how logic gates work in circuits.
Use the interactivity or play this dice game yourself. How could
you make it fair?
Try this interactive strategy game for 2
Can you find just the right bubbles to hold your number?
Can you put the numbers from 1 to 15 on the circles so that no
consecutive numbers lie anywhere along a continuous straight line?
Can you work out how to balance this equaliser? You can put more
than one weight on a hook.
Use the interactivity to sort these numbers into sets. Can you give
each set a name?
Can you see why 2 by 2 could be 5? Can you predict what 2 by 10
Explore the different tunes you can make with these five gourds.
What are the similarities and differences between the two tunes you
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?
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?
Here are some rods that are different colours. How could I make a dark green rod using yellow and white rods?
Match the halves.
Use the interactivities to fill in these Carroll diagrams. How do you know where to place the numbers?
Use the interactivity to create some steady rhythms. How could you
create a rhythm which sounds the same forwards as it does
Can you work out what is wrong with the cogs on a UK 2 pound coin?
How many trains can you make which are the same length as Matt's, using rods that are identical?
Can you find all the different ways of lining up these Cuisenaire
What shape is the overlap when you slide one of these shapes half
way across another? Can you picture it in your head? Use the
interactivity to check your visualisation.
Complete the squares - but be warned some are trickier than they
Work out the fractions to match the cards with the same amount of
Use the interactivity to help get a feel for this problem and to find out all the possible ways the balls could land.
Terry and Ali are playing a game with three balls. Is it fair that
Terry wins when the middle ball is red?
How have the numbers been placed in this Carroll diagram? Which
labels would you put on each row and column?