Edexcel IAL Computer Science – Topic 12 Networks and cybersecurity – Bundle (8 lessons)

A complete, ready-to-teach bundle for Pearson Edexcel International A Level Computer Science (2026): Topic 12 Networks and cybersecurity, in 8 bespoke lessons.

Every lesson comes with:

• Editable PowerPoint slides: goals, starter, explanations, diagrams, worked examples, a quick check, a task and an exit ticket, with teacher notes
• Student worksheet (Word): recall, applied practice and exam-style questions with marks
• Answer sheet (Word): full mark-scheme style answers

Worth £39.92 if bought lesson by lesson.

What’s inside

• U3.11 The OSI model and encapsulation
• U3.12 TCP/IP and the TLS handshake
• U3.13 Packet switching and routers
• U3.14 The domain name system
• U3.15 The IoT stack
• U3.16 The CIA triad and error detection
• U3.17 RSA encryption
• U3.18 Cloud and edge computing

Why teachers use it

• Mapped lesson by lesson to the specification, so coverage is easy to track
• Python 3 throughout, as the specification requires
• Fully editable: adapt to your class, timings and school template
• Works for teaching, revision, cover lessons and homework

These are independent resources written for the Pearson Edexcel International Advanced Level Computer Science specification (Issue 1, first teaching 2026; IAS XCP01, IAL YCP01). They are not produced or endorsed by Pearson.