This excel file deals with the puzzle where a number between 1 and 63 is chosen. That number can be seen on some of a set of six cards. The number can easily be calculated by looking at the cards containing that number. This puzzle is based on binary numbers and the fact that any number can be uniquely expressed as...

In this Nuffield probability activity students play a bingo-style game. To maximize their chances of winning, students must decide which numbers are most likely to occur when three dice are thrown and the scores are added.

This excel file has separate sheets dealing with various styles of analogue clock face and different levels of difficulty. It begins with a sheet showing times limited to quarter, half and whole hours. The next two sheets have the numbers removed from the clock face....

Torbury Festival is a set of interactive lessons around staging of a music festival. To overcome various challenges, from floods to escaped cattle to over-excited crowds storming the stage, students must apply their mathematical knowledge to real life situations. The problems are intended to promote discussion,...

This resource consists of four interactive excel files dealing with single transformations of 2D shapes.

Transformation: Enlargement...

The first two interactive sheets deal with selecting objects from two bags. The outcomes are shown on tree diagrams and the probabilities can be revealed.

The next interactive sheet deals with the problem of passing...

In this activity, students take the role of data analysts of the World Water Resources Board (WWRB) a fictional organisation charged with providing financial aid to countries most in need of water. They will compare the availability of water in Algeria, Jordan and Turkey. Students will determine how to fairly...

Produced by the Wellcome Trust, these resources include an interactive evolutionary tree and a video of the Tree of Life. These materials will help students to find out more about the work of Charles Darwin and evolution. The resources contain:

Tree of life video: The video is a short...