How good are you at estimating angles?
Help the bee to build a stack of blocks far enough to save his friend trapped in the tower.
Match pairs of cards so that they have equivalent ratios.
An environment that enables you to investigate tessellations of regular polygons
Use Excel to investigate the effect of translations around a number grid.
Use Excel to explore multiplication of fractions.
A simple file for the Interactive whiteboard or PC screen, demonstrating equivalent fractions.
Use Excel to practise adding and subtracting fractions.
Use an interactive Excel spreadsheet to investigate factors and multiples.
Use an Excel spreadsheet to explore long multiplication.
An Excel spreadsheet with an investigation.
Use an interactive Excel spreadsheet to explore number in this exciting 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 moves.
Here is a chance to play a fractions version of the classic Countdown Game.
The classic vector racing game brought to a screen near you.
This game challenges you to locate hidden triangles in The White Box by firing rays and observing where the rays exit the Box.
A metal puzzle which led to some mathematical questions.
Match the cards of the same value.
Use an Excel to investigate division. Explore the relationships between the process elements using an interactive spreadsheet.
A simple spinner that is equally likely to land on Red or Black. Useful if tossing a coin, dropping it, and rummaging about on the floor have lost their appeal. Needs a modern browser; if IE then at. . . .
A tool for generating random integers.
A collection of resources to support work on Factors and Multiples at Secondary level.
Start with any number of counters in any number of piles. 2 players take it in turns to remove any number of counters from a single pile. The winner is the player to take the last counter.
Can you beat the computer in the challenging strategy game?
Can you beat Piggy in this simple dice game? Can you figure out Piggy's strategy, and is there a better one?
A collection of our favourite pictorial problems, one for each day of Advent.
Can you put the 25 coloured tiles into the 5 x 5 square so that no column, no row and no diagonal line have tiles of the same colour in them?
Use this animation to experiment with lotteries. Choose how many balls to match, how many are in the carousel, and how many draws to make at once.
Can you find a reliable strategy for choosing coordinates that will locate the robber in the minimum number of guesses?
Can you be the first to complete a row of three?
Can you discover whether this is a fair game?
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.
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.
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.
Draw some isosceles triangles with an area of $9$cm$^2$ and a vertex at (20,20). If all the vertices must have whole number coordinates, how many is it possible to draw?
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.
Can you find all the 4-ball shuffles?
Investigate how logic gates work in circuits.
Is this a fair game? How many ways are there of creating a fair game by adding odd and even numbers?
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?
Here is a solitaire type environment for you to experiment with. Which targets can you reach?
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.
Slide the pieces to move Khun Phaen past all the guards into the position on the right from which he can escape to freedom.
How many times in twelve hours do the hands of a clock form a right angle? Use the interactivity to check your answers.
When number pyramids have a sequence on the bottom layer, some interesting patterns emerge...
These formulae are often quoted, but rarely proved. In this article, we derive the formulae for the volumes of a square-based pyramid and a cone, using relatively simple mathematical concepts.
Euler discussed whether or not it was possible to stroll around Koenigsberg crossing each of its seven bridges exactly once. Experiment with different numbers of islands and bridges.
You can move the 4 pieces of the jigsaw and fit them into both outlines. Explain what has happened to the missing one unit of area.
A circle rolls around the outside edge of a square so that its circumference always touches the edge of the square. Can you describe the locus of the centre of the circle?
A and B are two interlocking cogwheels having p teeth and q teeth respectively. One tooth on B is painted red. Find the values of p and q for which the red tooth on B contacts every gap on the. . . .