This article gives you a few ideas for understanding the Got It! game and how you might find a winning strategy.
Ben and his mum are planting garlic. Use the interactivity to help
you find out how many cloves of garlic they might have had.
The idea of this game is to add or subtract the two numbers on the dice and cover the result on the grid, trying to get a line of three. Are there some numbers that are good to aim for?
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?
Can you use the numbers on the dice to reach your end of the number line before your partner beats you?
A game for 2 people that everybody knows. You can play with a
friend or online. If you play correctly you never lose!
Here is a chance to play a version of the classic Countdown Game.
Investigate how the four L-shapes fit together to make an enlarged
L-shape. You could explore this idea with other shapes too.
Use the interactivity to find out how many quarter turns the man
must rotate through to look like each of the pictures.
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!
Can you complete this jigsaw of the multiplication square?
Try to stop your opponent from being able to split the piles of counters into unequal numbers. Can you find a strategy?
Using angular.js to bind inputs to outputs
Investigate the smallest number of moves it takes to turn these
mats upside-down if you can only turn exactly three at a time.
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 card pairing game involving knowledge of simple ratio.
An odd version of tic tac toe
Place the numbers from 1 to 9 in the squares below so that the difference between joined squares is odd. How many different ways can you do this?
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!
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. . . .
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.
An interactive activity for one to experiment with a tricky tessellation
Arrange the four number cards on the grid, according to the rules,
to make a diagonal, vertical or horizontal line.
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?
Move just three of the circles so that the triangle faces in the
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 generic circular pegboard resource.
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?
Our 2008 Advent Calendar has a 'Making Maths' activity for every
day in the run-up to Christmas.
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.
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?
Play this well-known game against the computer where each player is
equally likely to choose scissors, paper or rock. Why not try the
Complete the squares - but be warned some are trickier than they
This is a game for two players. Can you find out how to be the first to get to 12 o'clock?
Can you see why 2 by 2 could be 5? Can you predict what 2 by 10
Can you work out how to balance this equaliser? You can put more
than one weight on a hook.
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?
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?
Match the halves.
A game for 1 person to play on screen. Practise your number bonds
whilst improving your memory
How many trains can you make which are the same length as Matt's,
using rods that are identical?
What do the numbers shaded in blue on this hundred square have in common? What do you notice about the pink numbers? How about the shaded numbers in the other squares?
A train building game for 2 players.
If you have only four weights, where could you place them in order
to balance this equaliser?
Twenty four games for the run-up to Christmas.
Watch this film carefully. Can you find a general rule for
explaining when the dot will be this same distance from the
Choose 13 spots on the grid. Can you work out the scoring system? What is the maximum possible score?
NRICH December 2006 advent calendar - a new tangram for each day in
the run-up to Christmas.