This activity challenges you to make collections of shapes. Can you
give your collection a name?
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.
How many different ways can you find to join three equilateral triangles together? Can you convince us that you have found them all?
If you can post the triangle with either the blue or yellow colour face up, how many ways can it be posted altogether?
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?
Find out what a "fault-free" rectangle is and try to make some of
Use the interactivity to make this Islamic star and cross design.
Can you produce a tessellation of regular octagons with two
different types of triangle?
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?
What is the greatest number of squares you can make by overlapping
Sort the houses in my street into different groups. Can you do it in any other ways?
Use the interactivity to sort these numbers into sets. Can you give
each set a name?
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.
The computer has made a rectangle and will tell you the number of spots it uses in total. Can you find out where the rectangle is?
Complete the squares - but be warned some are trickier than they
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.
Square It game for an adult and child. Can you come up with a way of always winning this game?
Can you find just the right bubbles to hold your number?
A metal puzzle which led to some mathematical questions.
How many triangles can you make using sticks that are 3cm, 4cm and 5cm long?
Can you work out how to balance this equaliser? You can put more
than one weight on a hook.
Can you see why 2 by 2 could be 5? Can you predict what 2 by 10
Yasmin and Zach have some bears to share. Which numbers of bears
can they share so that there are none left over?
How many right angles can you make using two sticks?
Work out the fractions to match the cards with the same amount of
Try to stop your opponent from being able to split the piles of counters into unequal numbers. Can you find a strategy?
Match the halves.
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....?
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?
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?
Here are some rods that are different colours. How could I make a dark green rod using yellow and white rods?
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?
Three beads are threaded on a circular wire and are coloured either red or blue. Can you find all four different combinations?
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 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.
Can you spot the similarities between this game and other games you know? The aim is to choose 3 numbers that total 15.
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
Play a dice game of chance
Can you beat Piggy in this simple dice game? Can you figure out
Piggy's strategy, and is there a better one?
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.
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 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 1 or 2 people. Use the interactive version, or play with friends. Try to round up as many counters as possible.
Can you fit the tangram pieces into the outlines of the chairs?
Can you fit the tangram pieces into the outlines of the lobster, yacht and cyclist?
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.
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?
Explore the different tunes you can make with these five gourds.
What are the similarities and differences between the two tunes you
Use the information about Sally and her brother to find out how many children there are in the Brown family.
Can you fit the tangram pieces into the outline of this telephone?
Can you fit the tangram pieces into the outline of Little Fung at the table?