Triangle ABC has equilateral triangles drawn on its edges. Points P, Q and R are the centres of the equilateral triangles. What can you prove about the triangle PQR?
Match the cards of the same value.
Practise your skills of proportional reasoning with this interactive haemocytometer.
This set of resources for teachers offers interactive environments to support work on loci at Key Stage 4.
This resource contains a range of problems and interactivities on the theme of coordinates in two and three dimensions.
Show that for any triangle it is always possible to construct 3 touching circles with centres at the vertices. Is it possible to construct touching circles centred at the vertices of any polygon?
A collection of resources to support work on Factors and Multiples at Secondary level.
Use an interactive Excel spreadsheet to explore number in this exciting game!
Use Excel to investigate the effect of translations around a number grid.
A group of interactive resources to support work on percentages Key Stage 4.
Match pairs of cards so that they have equivalent ratios.
Help the bee to build a stack of blocks far enough to save his friend trapped in the tower.
The interactive diagram has two labelled points, A and B. It is designed to be used with the problem "Cushion Ball"
Can you give the coordinates of the vertices of the fifth point in the patterm on this 3D grid?
On the 3D grid a strange (and deadly) animal is lurking. Using the tracking system can you locate this creature as quickly as possible?
How good are you at finding the formula for a number pattern ?
A right-angled isosceles triangle is rotated about the centre point of a square. What can you say about the area of the part of the square covered by the triangle as it rotates?
Use Excel to explore multiplication of fractions.
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?
This resource contains interactive problems to support work on number sequences at Key Stage 4.
A metal puzzle which led to some mathematical questions.
An environment that enables you to investigate tessellations of regular polygons
Can you beat Piggy in this simple dice game? Can you figure out Piggy's strategy, and is there a better one?
Discover a handy way to describe reorderings and solve our anagram in the process.
A simple file for the Interactive whiteboard or PC screen, demonstrating equivalent fractions.
Here is a chance to play a fractions version of the classic Countdown Game.
An environment that simulates a protractor carrying a right- angled triangle of unit hypotenuse.
Use an Excel spreadsheet to explore long multiplication.
A java applet that takes you through the steps needed to solve a Diophantine equation of the form Px+Qy=1 using Euclid's algorithm.
The classic vector racing game brought to a screen near you.
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. . . .
Use an Excel to investigate division. Explore the relationships between the process elements using an interactive spreadsheet.
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.
How good are you at estimating angles?
This game challenges you to locate hidden triangles in The White Box by firing rays and observing where the rays exit the Box.
Place a red counter in the top left corner of a 4x4 array, which is covered by 14 other smaller counters, leaving a gap in the bottom right hand corner (HOME). What is the smallest number of moves. . . .
Use Excel to practise adding and subtracting fractions.
A tool for generating random integers.
Use an interactive Excel spreadsheet to investigate factors and multiples.
An Excel spreadsheet with an investigation.
A collection of our favourite pictorial problems, one for each day of Advent.
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.
Find all the ways of placing the numbers 1 to 9 on a W shape, with 3 numbers on each leg, so that each set of 3 numbers has the same total.
There are thirteen axes of rotational symmetry of a unit cube. Describe them all. What is the average length of the parts of the axes of symmetry which lie inside the cube?
There are 27 small cubes in a 3 x 3 x 3 cube, 54 faces being visible at any one time. Is it possible to reorganise these cubes so that by dipping the large cube into a pot of paint three times you. . . .
Ask a friend to choose a number between 1 and 63. By identifying which of the six cards contains the number they are thinking of it is easy to tell them what the number is.
in how many ways can you place the numbers 1, 2, 3 … 9 in the nine regions of the Olympic Emblem (5 overlapping circles) so that the amount in each ring is the same?
Can you beat the computer in the challenging strategy game?
P is a point on the circumference of a circle radius r which rolls, without slipping, inside a circle of radius 2r. What is the locus of P?
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?