A collection of our favourite pictorial problems, one for each day of Advent.
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?
On the 3D grid a strange (and deadly) animal is lurking. Using the tracking system can you locate this creature as quickly as possible?
The opposite vertices of a square have coordinates (a,b) and (c,d). What are the coordinates of the other vertices?
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. . . .
Use Excel to explore multiplication of fractions.
If you continue the pattern, can you predict what each of the following areas will be? Try to explain your prediction.
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 give the coordinates of the vertices of the fifth point in the patterm on this 3D grid?
Match pairs of cards so that they have equivalent ratios.
The interactive diagram has two labelled points, A and B. It is designed to be used with the problem "Cushion Ball"
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?
Re-arrange the pieces of the puzzle to form a rectangle and then to form an equilateral triangle. Calculate the angles and lengths.
Try this interactivity to familiarise yourself with the proof that the square root of 2 is irrational. Sort the steps of the proof into the correct order.
A tool for generating random integers.
A metal puzzle which led to some mathematical questions.
This game challenges you to locate hidden triangles in The White Box by firing rays and observing where the rays exit the Box.
Play countdown with matrices
How good are you at estimating angles?
This set of resources for teachers offers interactive environments to support work on loci at Key Stage 4.
Match the cards of the same value.
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.
A mathematically themed crossword.
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. . . .
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.
Can you beat the computer in the challenging strategy game?
To avoid losing think of another very well known game where the patterns of play are similar.
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.
This is an interactive net of a Rubik's cube. Twists of the 3D cube become mixes of the squares on the 2D net. Have a play and see how many scrambles you can undo!
Use an interactive Excel spreadsheet to explore number in this exciting game!
A group of interactive resources to support work on percentages Key Stage 4.
Help the bee to build a stack of blocks far enough to save his friend trapped in the tower.
A simple file for the Interactive whiteboard or PC screen, demonstrating equivalent fractions.
Use Excel to practise adding and subtracting fractions.
Three equilateral triangles ABC, AYX and XZB are drawn with the point X a moveable point on AB. The points P, Q and R are the centres of the three triangles. What can you say about triangle PQR?
Use an Excel spreadsheet to explore long multiplication.
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?
Can you discover whether this is a fair game?
Use an Excel to investigate division. Explore the relationships between the process elements using an interactive spreadsheet.
Use Excel to investigate the effect of translations around a number grid.
An Excel spreadsheet with an investigation.
Use an interactive Excel spreadsheet to investigate factors and multiples.
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.
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?
Make and prove a conjecture about the cyclic quadrilateral inscribed in a circle of radius r that has the maximum perimeter and the maximum area.
Try ringing hand bells for yourself with interactive versions of Diagram 2 (Plain Hunt Minimus) and Diagram 3 described in the article 'Ding Dong Bell'.
A spherical balloon lies inside a wire frame. How much do you need to deflate it to remove it from the frame if it remains a sphere?
This set of resources for teachers offers interactive environments to support work on graphical interpretation at Key Stage 4.