Find the frequency distribution for ordinary English, and use it to help you crack the code.

This article gives you a few ideas for understanding the Got It! game and how you might find a winning strategy.

Interactive game. Set your own level of challenge, practise your table skills and beat your previous best score.

Work out how to light up the single light. What's the rule?

Here is a chance to play a version of the classic Countdown Game.

Practise your diamond mining skills and your x,y coordination in this homage to Pacman.

A game for 1 person to play on screen. Practise your number bonds whilst improving your memory

What do the numbers shaded in blue on this hundred square have in common? What do you notice about the pink numbers? How about the shaded numbers in the other squares?

Can you spot the similarities between this game and other games you know? The aim is to choose 3 numbers that total 15.

If you have only four weights, where could you place them in order to balance this equaliser?

Use Excel to investigate the effect of translations around a number grid.

Meg and Mo still need to hang their marbles so that they balance, but this time the constraints are different. Use the interactivity to experiment and find out what they need to do.

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 hit?

Can you complete this jigsaw of the multiplication square?

Use an interactive Excel spreadsheet to explore number in this exciting game!

Meg and Mo need to hang their marbles so that they balance. Use the interactivity to experiment and find out what they need to do.

An environment which simulates working with Cuisenaire rods.

Use the interactivity to create some steady rhythms. How could you create a rhythm which sounds the same forwards as it does backwards?

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?

Could games evolve by natural selection? Take part in this web experiment to find out!

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?

A collection of resources to support work on Factors and Multiples at Secondary level.

Two engines, at opposite ends of a single track railway line, set off towards one another just as a fly, sitting on the front of one of the engines, sets off flying along the railway line...

Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line.

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?

What can you say about the values of n that make $7^n + 3^n$ a multiple of 10? Are there other pairs of integers between 1 and 10 which have similar properties?

A game for 2 people that everybody knows. You can play with a friend or online. If you play correctly you never lose!

An interactive activity for one to experiment with a tricky tessellation

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.

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. . . .

Use Excel to explore multiplication of fractions.

Show how this pentagonal tile can be used to tile the plane and describe the transformations which map this pentagon to its images in the tiling.

Learn how to use the Shuffles interactivity by running through these tutorial demonstrations.

A simple file for the Interactive whiteboard or PC screen, demonstrating equivalent fractions.

Can you locate the lost giraffe? Input coordinates to help you search and find the giraffe in the fewest guesses.

What is the relationship between the angle at the centre and the angles at the circumference, for angles which stand on the same arc? Can you prove it?

Imagine a wheel with different markings painted on it at regular intervals. Can you predict the colour of the 18th mark? The 100th mark?

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!

Try to stop your opponent from being able to split the piles of counters into unequal numbers. Can you find a strategy?

Can you find a reliable strategy for choosing coordinates that will locate the robber in the minimum number of guesses?

Investigate the smallest number of moves it takes to turn these mats upside-down if you can only turn exactly three at a time.

Investigate which numbers make these lights come on. What is the smallest number you can find that lights up all the lights?

An Excel spreadsheet with an investigation.

Use an Excel spreadsheet to explore long multiplication.

Use Excel to practise adding and subtracting fractions.