Complete AQA GCSE Computer Science 8525 3.5 networks unit for the 2027 specification: 5 lessons, work and homework booklets, 4 assessments.

Fully updated for AQA’s 2027 specification (version 1.3): no topologies, no Ethernet, Wi-Fi, UDP or FTP. Just what students will be examined on, taught with creative, hands-on activities.

5 lessons (90 editable PowerPoint slides)

1. Computer Networks (advantages, disadvantages, PAN, LAN and WAN)
2. Wired vs Wireless
3. Network Protocols (TCP, IP, HTTP, HTTPS, SMTP and IMAP)
4. The TCP/IP Model (four layers and where each protocol operates)
5. Network Security (authentication, encryption, firewalls and MAC address filtering)

Creative activities

• Network Architect: students design networks for a café, hospital, exam hall and esports arena
• Watch “HELLO WORLD” split into packets and put back together by TCP
• “Which Protocol Am I?” riddle game
• Follow an email down and up the TCP/IP stack
• Code Breaker: encrypt, decrypt and crack Caesar ciphers
• Secure the Bank: match real attacks to security methods

Every lesson includes

• Learning objectives and a Do Now with answers
• Drawn network diagrams, teaching slides and practice with answers
• AQA-style exam questions with a mark scheme
• A Success Check quiz with answers and a reflective plenary
• Teacher notes on every slide

Work booklet (20 pages) and homework booklet (16 pages), each with answers

Assessments (Word, with mark schemes)

• Mid-Unit Assessment 1: Networks (24 marks)
• Mid-Unit Assessment 2: Protocols and Layers (24 marks)
• Mid-Unit Assessment 3: Network Security (24 marks)
• End of Unit Assessment (35 marks, including an 8-mark question)

What’s included: 5 PowerPoint lessons, 2 booklets (each with an answer copy) and 4 assessments with mark schemes.

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