Science at key stage 3 (Year 7)
Unit 7J: Electrical circuits
Section 2: b. How do electrical circuits work?
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Objectives |
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- to use ideas about complete circuits to describe how a switch works
- to devise a system for fault finding using knowledge of circuit ideas
- to test and evaluate their system
- to collaborate with others to share information and ideas, and to solve problems
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Activities |
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Outcomes |
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Children: |
- Demonstrate to the whole class how a torch works.
- Provide each group of pupils with a device or circuit that is not working and ask them to find the fault. Help them to devise a checking system to find faults,
eg using ideas of circuit continuity or substitution of a component that they know works. Ask pupils to demonstrate their system to another group, and set a fault for that group to find.
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- present an account in speech, diagrams or writing to explain the working of an appliance
- show their understanding of circuit ideas by successfully finding fault(s)
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Points to note |
- This activity can be differentiated by the number and type of faults.
- Extension: pupils could be asked to explain how a similar appliance works.
- This work could be linked with unit 7D 'Using control to control a display' in the design and technology scheme of work.
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This unit is divided into sections. Each section contains a sequence of
activities with related objectives and outcomes. You can view this unit by
moving through the sections or print/download the whole unit.
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