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Years 4, 5 & 6
First published 2007; fully revised 2019
This unit of work encourages children to develop their understanding of electrical systems through exploring ways of protecting vehicles using electrical alarms.
It contains a PowerPoint presentation, teacher notes and pupil worksheets. The unit can be taught in Year 4 following from Project on a Page Simple Circuits and Switches and Simple Programming and Control, but to maximise the learning it could be delivered during Years 5/6, thus enabling the use of more complicated parallel circuits and a fuller range and understanding of switches. It also has potential for use with the Crumble microprocessor to extend the learning.
Pupils investigate different ways that switches work and incorporate these into their designs. They develop an understanding of simple electrical control through the designing and making of the alarm system, and are introduced to the idea of feedback. The designing and making assignment involves an alarm system to protect a specific type of vehicle. Children can choose the type of vehicle they wish to protect and design their alarm system to suit e.g. flashing lights and a siren for a police car, door alarms for a postal van, pressure sensor to tell if a lorry has been overloaded.
This draws on the prior learning about circuits and electricity in Science.
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