Lesson 4: Step by step
Using decomposition to break down a problem into smaller steps.New statutory RSHE guidance is here. We’re creating our brand new RSE & PSHE scheme ready for September 2026. Learn more
Learning objective
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Success criteria
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Before the lesson
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Lesson plan
Display the Presentation: Odd one out and allow time for paired discussion. Remind the children of what they did in the last lesson when they looked at input and output devices.
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Head of Computing at Exeter Junior School, Siobhan Morgan has nine years of computing teaching experience as well as experience from her role of ‘Subject Genius for Computing’ on TES. Siobhán enjoys spending time with her family and searching for the Gruffalo in the woodland of Exmoor with her two boys. Her hobbies include playing computer games, re-reading the Harry Potter series and watching science fiction series’ including Black Mirror and Fringe.
Siobhan’s free lesson on Remixing HTML teaches pupils how to ‘Build A Burger’ through code. She has also created many other lesson plans and video demos within Computing.
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