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 the interactivity or play this dice game yourself. How could
you make it fair?
Play a dice game of chance
Terry and Ali are playing a game with three balls. Is it fair that
Terry wins when the middle ball is red?
Try out the lottery that is played in a far-away land. What is the
chance of winning?
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.
Explore this interactivity and see if you can work out what it
does. Could you use it to estimate the area of a shape?
A tool for generating random integers.
Can you use the numbers on the dice to reach your end of the number line before your partner beats you?
An activity based on the game 'Pelmanism'. Set your own level of challenge and beat your own previous best score.
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.
Can you find a reliable strategy for choosing coordinates that will locate the robber in the minimum number of guesses?
Play this well-known game against the computer where each player is
equally likely to choose scissors, paper or rock. Why not try the
Interactive game. Set your own level of challenge, practise your table skills and beat your previous best score.
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?
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
How many triangles can you make using sticks that are 3cm, 4cm and 5cm long?
Yasmin and Zach have some bears to share. Which numbers of bears
can they share so that there are none left over?
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.
Try to stop your opponent from being able to split the piles of counters into unequal numbers. Can you find a strategy?
What shaped overlaps can you make with two circles which are the
same size? What shapes are 'left over'? What shapes can you make
when the circles are different sizes?
Use the information about Sally and her brother to find out how many children there are in the Brown family.
Imagine a wheel with different markings painted on it at regular
intervals. Can you predict the colour of the 18th mark? The 100th
If you can post the triangle with either the blue or yellow colour face up, how many ways can it be posted altogether?
Three beads are threaded on a circular wire and are coloured either red or blue. Can you find all four different combinations?
How many right angles can you make using two sticks?
Match the halves.
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?
Work out the fractions to match the cards with the same amount of
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....?
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?
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?
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?
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?
An interactive game to be played on your own or with friends.
Imagine you are having a party. Each person takes it in turns to
stand behind the chair where they will get the most chocolate.
A game for 1 or 2 people. Use the interactive version, or play with friends. Try to round up as many counters as possible.
Using angular.js to bind inputs to outputs
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.
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 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.
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.
In this activity, the computer chooses a times table and shifts it. Can you work out the table and the shift each time?
A game to be played against the computer, or in groups. Pick a 7-digit number. A random digit is generated. What must you subract to remove the digit from your number? the first to zero wins.
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