A complete KS3 Computer Science unit consisting of 10 fully prepared PowerPoint lessons, designed for Key Stage 3 students. This resource covers the core foundations of Computer Science, building knowledge progressively from basic computer components through to binary, logic gates, and introductory artificial intelligence concepts. The lessons are suitable for Years 7–9, and are ideal for non-specialists, ECTs, or experienced teachers looking for a clear, structured scheme of learning. Included lessons: Elements of a Computer Hardware The CPU Binary Representation Binary (Data Representation) Binary Addition Storage Devices Logic Gates Introduction to Artificial Intelligence AI Prompt Engineering Each lesson is clearly structured and can be delivered straight away, with explanations, examples, and opportunities for student interaction. The unit supports curriculum coverage of computer systems, data representation, and emerging technologies, and works well as a standalone KS3 scheme or preparation for GCSE Computer Science. Suitable for: KS3 Computer Science / Computing Years 7, 8, or 9 Whole-class teaching or cover lessons Building strong foundations for GCSE Computer Science

A complete 6-lesson KS3 Computing unit covering networks, network hardware, security threats, encryption, ciphers and decryption challenges. This resource is a fully planned 6-week KS3 Computing scheme of work designed for Years 7–9, introducing students to computer networks, cyber security and encryption through clear explanations and engaging activities. The unit includes: Lesson 1: Networks – LAN, WAN and real-world network examples Lesson 2: Network Hardware – routers, switches, servers and their roles Lesson 3: Security Threats – malware, phishing and staying safe online Lesson 4: Ciphers – introduction to encryption and Caesar ciphers Lesson 5: More Ciphers – extended encryption and decryption practice Lesson 6: Decrypting Challenges – Marvel-themed challenges to apply learning in a fun, motivating way Each lesson is suitable for a 55–60 minute lesson and can be used as: A half-term KS3 unit A standalone encryption or networks topic A foundation for GCSE Computer Science security concepts Ideal for both specialist and non-specialist teachers, with engaging content designed to build knowledge, confidence and enjoyment.