This is a lesson which meets specification points within the WJEC GCSE ‘The Sciences’ Double Award (2026) spec, specifically from Unit 3.2 - Energy Resources & Efficiency (Biology)

The lesson starts with an overview of the key vocabulary which students will be learning and using this lesson. Students can stick their key word lists into their books before the lesson begins.

The lesson starts off with a true or false activity to recap on the previous lesson content, on the topic of energy and power.

After this, students will be introduced to the idea of kilowatt hours as a measure of electrical energy used by appliances, and therefore homes/industry. Students will then be asked a few short questions to assess their understanding of what they have learned so far.

Students will then be shown the calculation to work out the total cost of using an appliance, and be shown an example electrical bill and worked example.

After this, students will be given a worksheet which contains information about various electrical appliances and how much they have been used for. Students will have to use the price of electricity provided to work out the family’s overall running costs of the house. The mark scheme for this task is included in the resources, for students to assess their work once complete.

The next task is a progress check, which the students can either self-assess or peer-assess using the answers provided.

The last task is a set of questions graded from easy to hard, students are to start at the easy questions and answer as many of them in their books as they can, working their way over to the harder questions.

The plenary task is an exit card for students to summarise what they have learned during the lesson, this can be handed into the teacher at the end of the lesson.

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