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 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.
Discs are flipped in the air. You win if all the faces show the same colour. What is the probability of winning?
Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning?
Use Excel to explore multiplication of fractions.
Use an interactive Excel spreadsheet to investigate factors and multiples.
This interactivity invites you to make conjectures and explore probabilities of outcomes related to two independent events.
The interactive diagram has two labelled points, A and B. It is designed to be used with the problem "Cushion Ball"
Use an Excel to investigate division. Explore the relationships between the process elements using an interactive spreadsheet.
A counter is placed in the bottom right hand corner of a grid. You toss a coin and move the star according to the following rules: ... What is the probability that you end up in the top left-hand. . . .
Can you spot the similarities between this game and other games you know? The aim is to choose 3 numbers that total 15.
Use Excel to investigate the effect of translations around a number grid.
A simple file for the Interactive whiteboard or PC screen, demonstrating equivalent fractions.
Use an Excel spreadsheet to explore long multiplication.
Use an interactive Excel spreadsheet to explore number in this exciting game!
An animation that helps you understand the game of Nim.
An Excel spreadsheet with an investigation.
Seven balls are shaken. You win if the two blue balls end up touching. What is the probability of winning?
Use Excel to practise adding and subtracting fractions.
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 explain the strategy for winning this game with any target?
How good are you at estimating angles?
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.
Here is a chance to play a version of the classic Countdown Game.
Do you know how to find the area of a triangle? You can count the squares. What happens if we turn the triangle on end? Press the button and see. Try counting the number of units in the triangle now. . . .
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?
Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line.
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.
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.
How good are you at finding the formula for a number pattern ?
To avoid losing think of another very well known game where the patterns of play are similar.
We can show that (x + 1)² = x² + 2x + 1 by considering the area of an (x + 1) by (x + 1) square. Show in a similar way that (x + 2)² = x² + 4x + 4
Try entering different sets of numbers in the number pyramids. How does the total at the top change?
When number pyramids have a sequence on the bottom layer, some interesting patterns emerge...
It is possible to identify a particular card out of a pack of 15 with the use of some mathematical reasoning. What is this reasoning and can it be applied to other numbers of cards?
Can you beat the computer in the challenging strategy 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.
There are nine teddies in Teddy Town - three red, three blue and three yellow. There are also nine houses, three of each colour. Can you put them on the map of Teddy Town according to the rules?
Can you find the pairs that represent the same amount of money?
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?
A game in which players take it in turns to choose a number. Can you block your opponent?
Can you discover whether this is a fair game?
The number of plants in Mr McGregor's magic potting shed increases overnight. He'd like to put the same number of plants in each of his gardens, planting one garden each day. How can he do it?
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.
This article gives you a few ideas for understanding the Got It! game and how you might find a winning strategy.
A collection of resources to support work on Factors and Multiples at Secondary level.
Mr McGregor has a magic potting shed. Overnight, the number of plants in it doubles. He'd like to put the same number of plants in each of three gardens, planting one garden each day. Can he do it?
A group of interactive resources to support work on percentages Key Stage 4.
Mo has left, but Meg is still experimenting. Use the interactivity to help you find out how she can alter her pouch of marbles and still keep the two pouches balanced.
Add or subtract the two numbers on the spinners and try to complete a row of three. Are there some numbers that are good to aim for?