Lesson 3: Current and resistance
Explaining the relationship between the number of bulbs in an electrical circuit and their brightness using knowledge of resistance.
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Learning objectives
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Before the lesson
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Lesson plan
1. Recap and recall
Display the Presentation: Comparing circuits showing three series circuits with different numbers of bulbs. Ask the class to predict which circuit they think will have the brightest bulbs, drawing on their experience from Science, Year 4, Energy: Electricity and circuits, Lesson 5: Investigating bulb brightness.
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Created by:
Maintained by: Kapow Primary teamLast update: 3 July 2026
