Lesson 5: Unplugged debugging
Understanding how to debug algorithms during an unplugged robot building activity.
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Learning objective
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Success criteria
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National curriculum
Cross-curricular links
Before the lesson
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Lesson plan
1. Recap and recall
Explain that the children will be talking with a partner to recall what they know about algorithms, decomposition and abstraction. Recap the meaning of the words:
- Algorithm: a clear set of instructions to carry out a task.
- Decomposition: to break something down into smaller chunks.
- Abstraction: to pick out the important information.
Display the Presentation: Speak like an expert and arrange the children in pairs. Allow time for them to share their ideas.
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Adaptive teaching
Assessing progress and understanding
Vocabulary definitions
Created by:
Maintained by: Kapow Primary teamLast update: 15 April 2026
