Made up of two complementary activities, these resources from the CS4FN team go deeper into theory about search algorithms.

The first activity involves the teacher leading a magic trick using some normal playing cards. In the subsequent explanation of the trick, students are asked to consider the pseudocode...

This longer-duration activity involves prototyping a low-power lighting system. It could be used in an off-timetable workshop or across a series of lessons.

Students are challenged to work through the whole design process, and to place a micro-controller (in this case a BBC micro:bit) at the centre of the...

This is a resource aimed at students aged 11-14. It is one of a series that support the use of the BBC micro:bit in the classroom. The pack contains several lesson plans, presentations and student handouts. The first ‘unplugged’ lesson introduces students to how programmable systems work, the second they are walked...

This activity, suitable for a multi-lesson sequence or a single extended session, challenges students to design and prototype a simple motion-sensing alarm. The device is intended to prevent theft or the accidental picking-up of a bag.

Motion is sensed using the accelerometer built-in to the BBC micro:bit,...

This unplugged activity, from the CS4FN team at Queen Mary University of London, helps learners to understand variable assignment and operations. They use the idea of variables as boxes as the basis of a group activity, developing their use of logical thinking to trace variables through programs.

The...

This unplugged activity from Peter McOwan and Paul Curzon mingles computer science with biology. A group activity is used that mimics the firing of neurons within the brain. These trigger other neurons to fire – these can be compared to AND gates in logic circuits.

The ‘brain in a bag’ kits used in the...

In this activity, students create colour images from satellite data. This allows them to study how different surfaces reflect different wavelengths of light, how coloured images are created using an RGB model, and how band combinations can be chosen to examine a particular landscape effectively.

Using a spreadsheet as a grid of 'pixels', this computing activity teachers how 1's and 0's can store image data. The classroom exercises use images with increasing pixel resolution, looking at how this affects the clarity of the image. Moving from black-and-white images, the students then use grids of colour...

After learning about flooding, students consider the design problems caused by its early detection. Students are introduced to moisture sensors, and can build their own using the instructions provided or use a ready-made version. This is connected to the BBC micro:bit and used as an input device. After processing...

In this full scheme of work, designed for a series of two-hour double-lessons, students develop a Mars Rover for NASA based on a standard VEX design. They learn about the components of a robotics system including control units and data communications, and work through a design process towards a prototype. The VEX...

This activity from the Computer Science for Fun (CS4FN) team at QMUL is an introduction to algorithms suitable for those in upper primary school. A ‘self-working’ magic trick is shown – this is a trick that works every time, as long as the process is followed exactly. No understanding of the trick is needed by the...

These paired activities, from Paul Curzon of the CS4FN team, offer an interesting slant on search algorithms and their relative efficiency.

Students are asked to consider sufferers of ‘locked-in syndrome’, a condition that leaves a healthy mind inside body that is, often, completely paralysed. If the...

This series of five one-hour lessons covers computer networks at secondary-school level. The objectives of the lessons are:

• Describe what a network is, the difference between a LAN and a WAN and identify three network topologies.
• Describe pieces of hardware that are needed in a network.
...

This series of three lessons introduces Python programming to students in secondary school. The lesson objectives include:

• Creating simple code including the input and print scripts
• Using "If statements" to make a decision
• Using the random function in programs

Detailed...

Produced in 2015, these resources look at the development of encoding messages and how technology and science has developed to allow us to keep messages secure. Looking at unintuitive quantum properties of light, Heisenberg’s Uncertainty Principal and entanglement, students will see how keys can be shared to ensure...