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Maintenance and amending programs – A Level Computer Science 9618

Maintenance and amending programs – A Level Computer Science 9618

Subject: Computing

Age range: 16+

Resource type: Lesson (complete)

Last updated

11 November 2026

pptx, 171.46 KB
pptx, 171.46 KB
docx, 38.65 KB
docx, 38.65 KB
docx, 39.44 KB
docx, 39.44 KB

Maintenance and amending programs lesson for Cambridge International AS & A Level Computer Science (9618), with editable PowerPoint slides, a student worksheet and full answers. Maintenance keeps a program working after release; students practise amending code for corrective, adaptive and perfective changes.

Written for Paper 2 Problem-solving and Programming, section 12 Software development (syllabus 12.3.7, 12.3.8). Everything is editable, so you can adapt it to your class.

What’s included
  • PowerPoint lesson (14 slides) with teacher notes on every slide
  • Student worksheet (Word), ready to print or edit
  • Answer sheet (Word) with mark-scheme style answers for every question
P2.31 Maintenance and amending programs

By the end of the lesson students can:

  • Explain why programs need maintenance after release, and describe corrective, adaptive and perfective maintenance
  • Analyse an existing program to work out what it does and where it goes wrong
  • Amend existing pseudocode to correct it and add functionality

Worksheet sections: A. Key words; B. Classify the changes; C. Analyse and amend; D. Exam-style questions; E. Challenge

Every lesson includes
  • Learning goals and a starter question
  • Clear explanations, diagrams and worked examples (Cambridge pseudocode, as in the 2027–2029 pseudocode guide, with Python alongside)
  • A quick check and a “your turn” task linked to the worksheet
  • Exam-style questions with marks, and an exit ticket
Format
  • PowerPoint (.pptx) and Word (.docx), fully editable
  • Works in PowerPoint and Google Slides
  • Calm, muted sixth-form design, consistent across the whole course

These are independent resources written for the Cambridge International AS & A Level Computer Science syllabus (9618) for examination in 2027, 2028 and 2029. They are not produced or endorsed by Cambridge University Press & Assessment. Syllabus point numbers are our own numbering of the syllabus statements.

More lessons in this series

Last updated: November 2026.

Get this resource as part of a bundle and save up to 27%

A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.

Bundle

Paper 2 Part 2 – A Level Computer Science 9618 (11 lessons)

11 ready-to-teach lessons for Cambridge International AS & A Level Computer Science (9618): Paper 2 Part 2. Every lesson has editable PowerPoint slides, a student worksheet and full answers, and the bundle costs less than buying the lessons one by one. A ready-to-teach bundle for Cambridge International AS & A Level Computer Science (9618): Paper 2 Problem-solving and Programming, part 2, lessons P2.21 to P2.31. 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 £54.89 if bought lesson by lesson. ## What's inside **Section 11 Programming** - P2.21 Passing by value and by reference - P2.22 Functions - P2.23 Writing efficient pseudocode **Section 12 Software development** - P2.24 The program development life cycle - P2.25 Waterfall, iterative and RAD - P2.26 Structure charts - P2.27 State-transition diagrams - P2.28 Errors and how to fix them - P2.29 Vlogting methods - P2.30 Vlogt strategies, plans and data - P2.31 Maintenance and amending programs ## Why teachers use it - Mapped lesson by lesson to the syllabus, so coverage is easy to track - Cambridge pseudocode, as in the 2027–2029 pseudocode guide, with Python alongside - Fully editable: adapt to your class, timings and school template These are independent resources written for the Cambridge International AS & A Level Computer Science syllabus (9618) for examination in 2027, 2028 and 2029. They are not produced or endorsed by Cambridge University Press & Assessment. Syllabus point numbers are our own numbering of the syllabus statements. Last updated: November 2026.

£23.99
Bundle

Software development – A Level Computer Science 9618 (8 lessons)

8 ready-to-teach lessons for Cambridge International AS & A Level Computer Science (9618): Software development. Every lesson has editable PowerPoint slides, a student worksheet and full answers, and the bundle costs less than buying the lessons one by one. A complete, ready-to-teach bundle for Cambridge International AS & A Level Computer Science (9618): Section 12 Software development, 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 - **P2.24** The program development life cycle - **P2.25** Waterfall, iterative and RAD - **P2.26** Structure charts - **P2.27** State-transition diagrams - **P2.28** Errors and how to fix them - **P2.29** Vlogting methods - **P2.30** Vlogt strategies, plans and data - **P2.31** Maintenance and amending programs ## Why teachers use it - Mapped lesson by lesson to the syllabus, so coverage is easy to track - Cambridge pseudocode, as in the 2027–2029 pseudocode guide, with Python alongside - 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 Cambridge International AS & A Level Computer Science syllabus (9618) for examination in 2027, 2028 and 2029. They are not produced or endorsed by Cambridge University Press & Assessment. Syllabus point numbers are our own numbering of the syllabus statements. Last updated: November 2026.

£17.99

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