The third collection of magic tricks, from Paul Curzon and Peter McOwan, is entitled ‘magic meets mistakes, machines and medicine. The five card tricks contained make use of maths and computer science theory, and are used by real magicians.

Each trick includes magician’s instructions. The theory behind each...

Our society is linked by many networks: telephone networks, utility supply networks, computer networks, and road networks. For a particular network there is usually some choice about where the roads, cables, or radio links can be placed. This resource explores the need to find ways of efficiently linking objects in...

When there are a lot of people using one resource, such as cars using roads, or messages getting through the Internet, there is the possibility of “deadlock”. A way of working cooperatively is needed to avoid this happening. The resource begins with instructions on how to play the orange game. The activity contains...

This activity shows how to accomplish a simple, but nevertheless seemingly impossible task -making a fair random choice by flipping a coin, between two people who don’t necessarily trust each other, and are connected only by a telephone. The resource begins with a detailed explanation of the activity and...

Many optimization problems involve situations where certain events cannot occur at the same time, or where certain members of a set of objects cannot be adjacent. For example, anyone who has tried to time-table classes or meetings will have encountered the problem of satisfying the constraints on all the people...

This edition of the Computing at School newsletter focuses on teaching computing in primary schools, and contains articles covering:

*Pedagogy of computing in primary schools

*National curriculum programme of study

*Game design in the primary classroom

*Primary – secondary transition...

This introductory article shows working examples of basic Python programs. It includes:

• Printing to the screen
• Comments
• Simple arithmetic
• Using variables
• Strings and string arrays
• For and While loops
• Random numbers from the Random library
• Creating a...

This resource is designed as an introduction to activities available using a Raspberry Pi computer. The introduction explains:
*what a Raspberry Pi is: a small, affordable yet powerful computer
*what can be learnt from this manual: how to perform simple programming and the basics of computer science...

This document from the Department of Education looks at how the headteacher and teachers at two different secondary schools work together to promote good behaviour. The resource explores strategies including the 'head's breakfast', listening staff, the 'ladder' of detentions, visibility of senior staff and the...

The Royal Institution's 2023 Christmas Lectures - The truth about AI, will take place in December 2023 and will be broadcast on the BBC later in the month. This collection of resources from the STEM Learning digital resource collection can support the themes addressed in this three lectures series presented by...

This introduction to programming in Scratch uses a trivial example to demonstrate simple audio and animation. It is written for Scratch 1.4 but can be easily adapted for later versions. ...

This short practical guide shows how to implement a bubble sort algorithm in Scratch. The procedure is easy to follow, and can be used in conjunction with theory or unplugged activities to aid...

This simple game is an engaging way to extend learning in Scratch. It uses fairly simple scripts running in parallel to detect collisions and move sprites, which have been designed in the Scratch environment. It could be used a basis for other similar ‘scrolling’ games. 

This activity is an introduction to writing programs that can handle errors. It also helps students to understand number bases, by guiding them through the writing of a ‘base converter’ program.

Suitable for students throughout secondary computing, including those studying at an advanced level, this exercise introduces the Heap Sort and explores why it is more efficient than the Bubble Sort in another Scratch Patch article. Students learn about tree data structures, including the correct terminology for...