KS3 ~ Year 8 ~ Resistance

This lesson is designed for the KS3 Year 8 Science course, specifically the P2 1.1 unit on ‘Electricity & Magnetism’.

The lesson begins with an introduction to resistance, students are provided with a definition which they can write down in their books, as well as a diagram to depict what happens to electrons as they flow around the metal wires within a circuit. Students will then complete a ‘copy-and-complete’ task, this can be marked using the mark scheme provided.

Students are now asked to ‘Think > Pair > Share’ their ideas about whether the thickness of the wire would affect the resistance of the wire. Students will discuss their ideas with their peers, share their ideas with the class and then watch a video to find out the answer. Students can then summarise their findings in their books by completing a fill-in-the-blank task, this can then be self-assessed once complete.

Students will now be introduced to Ohm’s law, which links the resistance of a component to the current running through it and potential difference across it. Students will be given an equation triangle, they can copy this down into their books and use this to complete the set of problems on the next slide. This work can be marked and corrected once complete.

Lastly, students are asked to ‘Think > Pair > Share’ their ideas about which materials are good conductors and insulators. Students can discuss their ideas and write them down into their books, answers are then revealed for students to check their work against.

The last assessment task is a ‘Copy and correct’ task, students are given a paragraph of information which they will need to copy and correct the mistakes as they go. Once complete, this can be marked using the mark scheme provided.

The plenary task is a choice of two tasks - to summarise what students have learned in three sentences or to write a definition for a set of key words.

All resources are included at the end of the presentation, thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)