Take turns to place a decimal number on the spiral. Can you get three consecutive numbers?
A game that tests your understanding of remainders.
A game in which players take it in turns to choose a number. Can you block your opponent?
Given the products of diagonally opposite cells - can you complete this Sudoku?
Can you spot the similarities between this game and other games you
know? The aim is to choose 3 numbers that total 15.
An activity based on the game 'Pelmanism'. Set your own level of challenge and beat your own previous best score.
First Connect Three game for an adult and child. Use the dice numbers and either addition or subtraction to get three numbers in a straight line.
Interactive game. Set your own level of challenge, practise your table skills and beat your previous best score.
There are nasty versions of this dice game but we'll start with the nice ones...
Practise your diamond mining skills and your x,y coordination in this homage to Pacman.
A game for 2 players. Given an arrangement of matchsticks, players
take it is turns to remove a matchstick, along with all of the
matchsticks that touch it.
Some Games That May Be Nice or Nasty for an adult and child. Use your knowledge of place value to beat your oponent.
A simple game of patience which often comes out. Can you explain
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.
Spiralling Decimals game for an adult and child. Can you get three decimals next to each other on the spiral before your partner?
Investigations based on an Indian game.
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?
How good are you at estimating angles?
A game for 1 person to play on screen. Practise your number bonds
whilst improving your memory
Two sudokus in one. Challenge yourself to make the necessary
A Sudoku based on clues that give the differences between adjacent cells.
A Sudoku that uses transformations as supporting clues.
Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?
Who said that adding, subtracting, multiplying and dividing
couldn't be fun?
A game in which players take it in turns to try to draw
quadrilaterals (or triangles) with particular properties. Is it
possible to fill the game grid?
Unmultiply is a game of quick estimation. You need to find two numbers that multiply together to something close to the given target - fast! 10 levels with a high scores table.
A game in which players take it in turns to turn up two cards. If
they can draw a triangle which satisfies both properties they win
the pair of cards. And a few challenging questions to follow...
A Sudoku with clues as ratios or fractions.
This pair of linked Sudokus matches letters with numbers and hides a seasonal greeting. Can you find it?
A game for 2 or more people, based on the traditional card game
Rummy. Players aim to make two `tricks', where each trick has to
consist of a picture of a shape, a name that describes that shape,
and. . . .
This second Sudoku article discusses "Corresponding Sudokus" which are pairs of Sudokus with terms that can be matched using a substitution rule.
This sudoku requires you to have "double vision" - two Sudoku's for
the price of one
A Sudoku with clues given as sums of entries.
Follow-up to the February Game Rules of FEMTO.
Four numbers on an intersection that need to be placed in the
surrounding cells. That is all you need to know to solve this
This is a game for two players. You will need some small-square
grid paper, a die and two felt-tip pens or highlighters. Players
take turns to roll the die, then move that number of squares in. . . .
A simple game for 2 players invented by John Conway. It is played
on a 3x3 square board with 9 counters that are black on one side
and white on the other.
A Sudoku with a twist.
A Sudoku with clues as ratios.
Here is a solitaire type environment for you to experiment with. Which targets can you reach?
A game to make and play based on the number line.
Collect as many diamonds as you can by drawing three straight lines.
Basic strategy games are particularly suitable as starting points
for investigations. Players instinctively try to discover a winning
strategy, and usually the best way to do this is to analyse. . . .
The game of go has a simple mechanism. This discussion of the principle of two eyes in go has shown that the game does not depend on equally clear-cut concepts.
Why not challenge a friend to play this transformation game?
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
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.
This article explains the use of the idea of connectedness in networks, in two different ways, to bring into focus the basics of the game of Go, namely capture and territory.
Slide the pieces to move Khun Phaen past all the guards into the position on the right from which he can escape to freedom.