Maths problem solving: investigations, games, puzzles and proofs

Chicken coop game: estimating fractions
Chicken coop game: estimating fractions Tablet enabled - iPad | Android | more...

You will be shown a fraction and your job is to estimate the decimal equivalent by placing a nest on a number line. Our hens are mathematical experts and they will fire their eggs towards the correct answer. If your estimate is good the eggs will be caught in the nest but if you're too far out it all gets very messy.

Estimation: How tall is a giant?
Estimation: How tall is a giant? Tablet enabled - iPad | Android | more...

Could you estimate the height of a giant if you knew how long his arm was? In this activity you must estimate the height of three giants based on the length of different body parts.

Eggstreme maths
Eggstreme maths

An in-depth investigation in which you must find the number ways in which eggs can be packed in different sized egg boxes. When you've found all the combinations a surprising result is revealed which allows you to predict the number of permutations for any sized egg box and any number of eggs.

The product of two odd integers is always odd
The product of two odd integers is always odd Tablet enabled - iPad | Android | more...

Drag the steps into the correct order to form a mathematical proof.

The sum of two even integers is always even
The sum of two even integers is always even Tablet enabled - iPad | Android | more...

Drag the steps into the correct order to form a mathematical proof.

Professor Twit's mathematical mind reading trick
Professor Twit's mathematical mind reading trick Tablet enabled - iPad | Android | more...

Let the Professor perform his trick on you. Can you work out how he does it?

Tower of Hanoi challenge
Tower of Hanoi challenge

Put your mental capabilities to the test with this ancient puzzle. Can you work out a system that enables you to solve the problem in the minimum number of moves? Don't worry if you can't; just press the 'solve' button and watch the computer perform the ideal solution.

Mastermind
Mastermind

A delightful online reproduction of the classic board game involving pegs - created by the exceptional flashValley.

Peg solitaire
Peg solitaire

Get the grey cells working with this online reproduction of the ancient logic puzzle - another classic from flashValley.

Moonlander: algebra game
Moonlander: algebra game Tablet enabled - iPad | Android | more...

Use your knowledge of algebra and inter-planetary flight to gently land your spaceship on the moon pads in the correct order.

Balancing chemical equations
Balancing chemical equations Tablet enabled - iPad | Android | more...

Learn to balance chemical equations with this flash activity. (worksheet)

General resources

Class scoreboard
Class scoreboard

If you're playing a game or a quiz and you need to keep score for several teams then this is the tool for you. Choose between a number of themes: 'Alien abduction', 'In your face' and 'Snail race'.

Timer
Timer Tablet enabled - iPad | Android | more...

A new improved timer that now includes a countdown timer as well as a standard timer. Some of the alarm sounds are not for those of sensitive disposition. The time is given in Hours, minutes, seconds and hundredths of a second. Handy for timed tests, exams and activities.

Class minder
Class minder Tablet enabled - iPad | Android | more...

A digital assistant that keeps an eye on your class on those rare occasions when you have to pop out.

Graph Generator
Graph Generator

This powerful (yet simple to use) application allows you to create any 4 quadrant graph, grid or isometric paper. This may then be printed out for classwork or used as a background when using an interactive whiteboard. Brilliant.