Curriculum Links

National Curriculum for England – Computer Science / Design and Technology (KS4, Year 10)

• Key Stage 4 Computing:
  • Understand and apply the principles of information security and system protection.
  • Learn to implement effective security measures to protect IT systems and data.
  • Recognise common threats and how to minimise risks.
• Relevant Programmes of Study (2014):
  • "understand how cyber security relates to confidentiality, integrity and availability of data."
  • "implement security measures to protect data stored on digital devices."
• Computing Content Descriptors:
  • Apply secure password strategies, use and evaluate antivirus solutions, understand firewalls.
  • Test and evaluate the effectiveness of security protocols.

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WALT (We Are Learning To):

• Explain why strong security precautions are needed in IT systems.
• Create strong, secure passwords and understand password management tools.
• Identify and use antivirus software effectively.
• Describe the purpose and basic operation of firewalls.
• Apply a range of security precautions in practical scenarios to safeguard data.

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Success Criteria

• I can describe at least three types of security precautions.
• I can create a strong, secure password using a clear method.
• I can explain how antivirus software and firewalls protect a computer system.
• I can demonstrate applying security measures in practical tasks.
• I can evaluate the effectiveness of different security methods in given scenarios.

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Resources Needed

• Computers or tablets with internet access
• Pre-installed or trial antivirus software (e.g., free versions suitable for teaching)
• Password strength checker tools (offline or controlled online tools)
• Printed dyslexia-friendly handouts summarising key concepts
• Whiteboard and markers
• “Security Precautions” worksheet with practical exercises
• USB drives or simulated data for practice in protecting files

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Lesson Structure (60 minutes)

1. Introduction & Recap (10 minutes)

• Quick recap of Lesson 1 ("The Risks of Digital Threats"). Use a dyslexia-friendly PowerPoint with visuals and minimal text.
• Starter question on the board: Why do you think hackers target passwords the most?
• Brief whole-class discussion to activate prior knowledge.
• Introduce learning objectives (WALT) and success criteria clearly on the board.

Differentiation: Provide printed or digital key term glossary for students who may benefit. Also, offer a visual mind map summary.

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2. Teacher Explanation & Modelling (10 minutes)

• Explain what makes a strong password (length, complexity, unpredictability). Model creating a strong password using a memorable phrase or random word combination.
• Demonstrate how antivirus software works: scanning, detecting, and removing threats.
• Introduce firewalls: explain them as “digital gatekeepers” that control incoming and outgoing traffic. Use simple analogies (e.g., firewall as a security guard filtering visitors).
• Use an interactive whiteboard or visual slide with infographics, key points highlighted in colour (helpful for dyslexic learners).

Extension: For advanced learners, briefly introduce concepts like multi-factor authentication or password managers.

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3. Practical Activity: Applying Precautions (25 minutes)

Activity 1 – Password Creation Challenge (10 minutes)

• Each student creates 3 passwords based on different methods (e.g., passphrase, random characters, acronym).
• Use a password strength checker tool to test passwords.
• Group discussion: Why are some passwords stronger than others?

Activity 2 – Antivirus Software Demo (10 minutes)

• Students navigate a guided simulation or real antivirus software interface (set up by teacher in advance).
• Run a virus scan on a sample folder (can use safe, created files flagged as “threats” for the exercise).
• Discuss what actions the antivirus takes and why these matter.

Activity 3 – Firewall Scenario (5 minutes)

• Teacher presents a hypothetical scenario: a company needs to set up a firewall to protect against external attacks.
• Students discuss in pairs what rules the firewall might impose (e.g., blocking unknown IPs, allowing trusted services).
• Share answers briefly with the class.

Differentiation: Provide step-by-step printed instructions with visuals for students needing extra support. Allow verbal explanation instead of written for some tasks if preferred.

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4. Plenary & Assessment (10 minutes)

• Quick quiz (verbal or written) on key points: password strength factors, antivirus function, firewall role.
• Students self-assess their confidence on success criteria using a traffic light system (red/orange/green).
• Teacher gives immediate verbal feedback and clarifies any misunderstandings.

Extension: Challenge advanced learners to suggest additional IT security measures (e.g., encryption, backups).

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5. Homework / Extension Activity

• Research a recent example of a cyber attack related to weak passwords or virus infection. Prepare a short summary explaining how better precautions could have prevented it.
• Optional: Try setting up password manager software with parental supervision and bring feedback to next lesson.

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Differentiation & Inclusion Strategies

• Dyslexia-friendly materials including:
  • Clear, large font (e.g., Arial, 14pt+), coloured overlays in presentations, bullet points, visuals, and infographics.
  • Audio versions of main content where possible.
• Pair / group work to encourage peer support.
• Scaffolding of practical tasks with checklists and stepwise guides.
• Open-ended questions and extension ideas for more capable learners to deepen their understanding.

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Additional Teacher Notes

• Encourage a safe space for students to share if they or family members have experienced cyber threats, making lessons relevant and real.
• Emphasise everyday relevance (e.g., protecting social media accounts and personal devices).
• Reinforce that security is an ongoing practice, not a one-off task.

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Summary

This lesson empowers Year 10 students to confidently identify and implement key security precautions in IT systems. By engaging both theory and hands-on practice, meeting the National Curriculum's aims, it builds foundational cybersecurity skills essential in today's digital world.