Data Backup & Recovery

Overview

Year Group: Year 10
Class Size: 6 students
Lesson Duration: 60 minutes
Unit: Securing Our Digital World (Lesson 3 of 3)
Subject: Technology (Computing)
National Curriculum Reference:

• KS4 Computing Programme of Study:
  • “Understand the need for creating and using backups to protect data and system recovery”
  • “Understand the legal, moral and ethical issues relating to the use of information technology systems”
• Computing Programmes of Study (DfE 2013):
  • Design, use and evaluate computational abstractions that model the state and behaviour of real-world problems and physical systems.
  • Understand how instructions are stored and executed within a computer system.
  • Understand the consequences of inappropriate use of ICT and the importance of security.

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Learning Objectives (WALT)

• WALT understand different types of data backup methods and their uses
• WALT appreciate the importance of regular data backups in mitigating security risks
• WALT perform practical exercises selecting and using appropriate backup methods
• WALT identify effective ways to securely manage personal access to digital information

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Success Criteria

• Explain at least three different backup methods (full, incremental, differential) and when to use each
• Describe why regular backups reduce data loss and security risks
• Successfully complete a practical task creating a backup using chosen software or manual methods
• Articulate good personal security practices for protecting backup data and access credentials

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Resources Needed

• Computers with internet access and USB ports
• External USB drives or simulated backup storage
• Backup software (free or built-in OS tools like File History on Windows, Time Machine on Mac)
• Projector or interactive whiteboard
• Dyslexia-friendly handouts summarising key terms and diagrams (use clear fonts like OpenDyslexic or Comic Sans, coloured overlays, bullet points)
• Whiteboard, markers

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Lesson Outline

1. Starter (10 minutes)

• Activity: Quick quiz quiz on key terminology from previous lessons on security (e.g. what is a firewall, encryption, authentication) to recap safeguarding digital systems.
• Differentiation: Provide quiz sheets with text-to-speech option or graphic-based flashcards for dyslexic learners.
• Outcome: Activate prior knowledge, set context for backup importance.

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2. Introduction to Backups (10 minutes)

• Teacher input:
  • Explain importance of backing up data regularly using relevant everyday examples (e.g. losing holiday photos/music projects).
  • Introduce types of backups: full, incremental, differential
  • Highlight security risks of not backing up: ransomware, accidental deletion, hardware failure.
• Use visuals: Diagrams illustrating methods of backups. Use dyslexia-friendly colour coding.
• Success criteria: Students can verbally explain difference between backup types.
• Question: Ask why a user might prefer incremental backup over full every day?

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3. Secure Data Management & Backup Strategies (10 minutes)

• Group discussion: Security of backup data (importance of encryption, physical security of drives, strong passwords, and access control).
• Discuss moral/legal responsibility to protect sensitive data as per National Curriculum focus on ethical issues in ICT.
• Dyslexia-friendly: Provide simplified handout summarising points with icons representing encryption locks, user controls.
• Challenge extension: Advanced learners research one real-life data breach related to poor backup security and prepare a 2-minute summary for the class.

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4. Practical Exercise (20 minutes)

• Task: Students use the school computers to perform a simulated backup of files to an external drive or a backup folder.
• Options include:
  • Using File History (Windows) or Time Machine (Mac)
  • Manual copying to USB
  • Using a simple third-party backup tool pre-installed
• Differentiation:
  • Provide step-by-step guides with screenshots
  • Peer-support system: advanced students help others requiring support
• Teacher role: Circulate to support, answer questions, and check backups work properly.

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5. Plenary & Assessment (10 minutes)

• Students complete an exit card answering:
  • Name and describe the backup type you used today
  • Why is it important to keep backups secure?
  • Suggest one method to securely manage access to your backup data
• Discuss answers as a group, clarify misconceptions.

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Differentiation Strategies

• For learners with dyslexia: Simplified text, dyslexia-friendly fonts and colours, verbal explanations, mnemonics (e.g. FID for Full, Incremental, Differential).
• For advanced learners: Research extension task on data breaches, explaining impact of poor backup strategies on organisations.
• For those needing challenge: Provide partial backup scenario and ask students to identify what has been missed or how to improve backup coverage.

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Assessment for Learning

• Formative assessment via questioning during input and group discussions
• Observation during practical task
• Exit card responses to measure conceptual understanding

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Reflection Notes for Teacher

• Monitor engagement during practical; adapt pace if necessary to ensure all complete task.
• Consider follow-up reinforcement for students who struggle with backup concepts.
• Use student summaries on breaches (for advanced group) as an opportunity for peer learning.

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This lesson encourages students to think critically about data security and personal responsibility, providing both theoretical understanding and hands-on experience, preparing them for ethical and effective use of technology aligned to the National Curriculum for England.