3.20 Surface Area of Prisms GCSE PowerPoint Lesson

In this 26-slide lesson, pupils will learn how to calculate the surface area of prisms, including cuboids, triangular prisms, cylinders, trapezium-based prisms, and L-shaped prisms. They will develop their understanding by reasoning through the nets of these shapes, identifying all the individual faces and calculating their areas. Pupils will practise adding the areas of the faces systematically, using accurate measurements and appropriate units. The lesson will focus on interpreting diagrams, visualising 3D shapes from different perspectives, and applying area formulas confidently.

The lesson includes:

• Clear, guided examples

• Discussion opportunities from Think, Pair, Share

• Mini whiteboard section to check understanding and clarify misconceptions

• Two structured tasks to practise key skills

• Challenge activity to extend and deepen learning

Perfect for engaging learners while reinforcing essential geometry concepts.