AQA GCSE - Surface area to volume ratio

This lesson was designed for a higher ability year 11 class studying the AQA GCSE Combined Science syllabus, Biology.
This lesson teaches students how to calculate surface area to volume ratio in simple steps, then links this to exchange surfaces / the size of organisms.
This resource includes:

• A 5-in-5 retrieval-style starter
• Retrieval practice
• Direct instruction slides (dual coding, reduced cognitive load)
• Guided ‘worked examples’ (teacher models)
• Regular checks for understanding (quizzes)
• Guided ‘turn and talk’
• Independent practice tasks, with answer slides
• Exam questions with scaffolds provided and answer slides
• A written plenary task