A game in which players take it in turns to choose a number. Can you block your opponent?
You have 27 small cubes, 3 each of nine colours. Use the small cubes to make a 3 by 3 by 3 cube so that each face of the bigger cube contains one of every colour.
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.
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?
A game for 2 people that everybody knows. You can play with a
friend or online. If you play correctly you never lose!
Use the interactivities to complete these Venn diagrams.
Can you fit the tangram pieces into the outline of Little Ming?
Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line.
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?
A game for 1 or 2 people. Use the interactive version, or play with friends. Try to round up as many counters as possible.
Investigate how logic gates work in circuits.
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.
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. . . .
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?
An interactive activity for one to experiment with a tricky tessellation
Each light in this interactivity turns on according to a rule. What happens when you enter different numbers? Can you find the smallest number that lights up all four lights?
If you have only four weights, where could you place them in order
to balance this equaliser?
A train building game for 2 players.
A generic circular pegboard resource.
Our 2008 Advent Calendar has a 'Making Maths' activity for every
day in the run-up to Christmas.
A card pairing game involving knowledge of simple ratio.
Can you complete this jigsaw of the multiplication square?
Can you set the logic gates so that the number of bulbs which are on is the same as the number of switches which are on?
Overlaying pentominoes can produce some effective patterns. Why not
use LOGO to try out some of the ideas suggested here?
Investigate the smallest number of moves it takes to turn these
mats upside-down if you can only turn exactly three at a time.
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!
Use the interactivity to create some steady rhythms. How could you
create a rhythm which sounds the same forwards as it does
Choose 13 spots on the grid. Can you work out the scoring system? What is the maximum possible score?
Train game for an adult and child. Who will be the first to make the train?
In this activity, the computer chooses a times table and shifts it. Can you work out the table and the shift each time?
Using angular.js to bind inputs to outputs
Imagine a wheel with different markings painted on it at regular
intervals. Can you predict the colour of the 18th mark? The 100th
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?
Work out the fractions to match the cards with the same amount of
Can you find a relationship between the number of dots on the
circle and the number of steps that will ensure that all points are
Try to stop your opponent from being able to split the piles of counters into unequal numbers. Can you find a strategy?
Here is a solitaire type environment for you to experiment with. Which targets can you reach?
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.
NRICH December 2006 advent calendar - a new tangram for each day in
the run-up to Christmas.
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?
Can you see why 2 by 2 could be 5? Can you predict what 2 by 10
Use the Cuisenaire rods environment to investigate ratio. Can you
find pairs of rods in the ratio 3:2? How about 9:6?
Use the interactivity to investigate what kinds of triangles can be
drawn on peg boards with different numbers of pegs.
Choose the size of your pegboard and the shapes you can make. Can you work out the strategies needed to block your opponent?
There are nine teddies in Teddy Town - three red, three blue and three yellow. There are also nine houses, three of each colour. Can you put them on the map of Teddy Town according to the rules?
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?
Three beads are threaded on a circular wire and are coloured either red or blue. Can you find all four different combinations?
Given the nets of 4 cubes with the faces coloured in 4 colours, build a tower so that on each vertical wall no colour is repeated, that is all 4 colours appear.
Can you fit the tangram pieces into the outlines of the lobster, yacht and cyclist?