Can you find just the right bubbles to hold your number?
A game for 2 people that everybody knows. You can play with a
friend or online. If you play correctly you never lose!
What are the coordinates of the coloured dots that mark out the
tangram? Try changing the position of the origin. What happens to
the coordinates now?
This was a problem for our birthday website. Can you use four of these pieces to form a square? How about making a square with all five pieces?
An interactive activity for one to experiment with a tricky tessellation
A card pairing game involving knowledge of simple ratio.
Complete the squares - but be warned some are trickier than they
An interactive game for 1 person. You are given a rectangle with 50 squares on it. Roll the dice to get a percentage between 2 and 100. How many squares is this? Keep going until you get 100. . . .
Move just three of the circles so that the triangle faces in the
Play this well-known game against the computer where each player is
equally likely to choose scissors, paper or rock. Why not try the
Match the halves.
Our 2008 Advent Calendar has a 'Making Maths' activity for every
day in the run-up to Christmas.
An odd version of tic tac toe
Use the interactivity to find out how many quarter turns the man
must rotate through to look like each of the pictures.
Take it in turns to place a domino on the grid. One to be placed horizontally and the other vertically. Can you make it impossible for your opponent to play?
A train building game for 2 players.
Twenty four games for the run-up to Christmas.
A generic circular pegboard resource.
NRICH December 2006 advent calendar - a new tangram for each day in
the run-up to Christmas.
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.
Choose 13 spots on the grid. Can you work out the scoring system? What is the maximum possible score?
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?
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?
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?
Imagine a wheel with different markings painted on it at regular
intervals. Can you predict the colour of the 18th mark? The 100th
Using angular.js to bind inputs to outputs
Try to stop your opponent from being able to split the piles of counters into unequal numbers. Can you find a strategy?
Take it in turns to make a triangle on the pegboard. Can you block your opponent?
Choose the size of your pegboard and the shapes you can make. Can you work out the strategies needed to block your opponent?
Starting with the number 180, take away 9 again and again, joining up the dots as you go. Watch out - don't join all the dots!
Can you work out what is wrong with the cogs on a UK 2 pound coin?
Use the Cuisenaire rods environment to investigate ratio. Can you
find pairs of rods in the ratio 3:2? How about 9:6?
If you can post the triangle with either the blue or yellow colour face up, how many ways can it be posted altogether?
How can the same pieces of the tangram make this bowl before and after it was chipped? Use the interactivity to try and work out what is going on!
Use your mouse to move the red and green parts of this disc. Can
you make images which show the turnings described?
Work out the fractions to match the cards with the same amount of
What is the greatest number of squares you can make by overlapping
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?
Find out how we can describe the "symmetries" of this triangle and
investigate some combinations of rotating and flipping it.
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?
How many right angles can you make using two sticks?
Yasmin and Zach have some bears to share. Which numbers of bears
can they share so that there are none left over?
Use the interactivity or play this dice game yourself. How could
you make it fair?
Can you fit the tangram pieces into the outlines of the chairs?
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
Can you fit the tangram pieces into the outlines of the lobster, yacht and cyclist?
Can you fit the tangram pieces into the outline of the child walking home from school?
Can you fit the tangram pieces into the outline of this brazier for roasting chestnuts?
Can you fit the tangram pieces into the outlines of these people?