4.24 Capture Recapture Higher GCSE PowerPoint Lesson

This 18-slide lesson introduces the capture-recapture sampling technique, a method used to estimate the size of a population when it is impractical to count every individual. Students will explore how proportional reasoning is used to set up and solve the standard capture-recapture formula. The lesson includes real-world contexts, such as estimating animal populations, and reinforces the assumptions needed for the method to be valid. Students will apply the formula to solve problems and interpret results accurately.

Note this lesson is for the higher tier only.

The lesson includes:

• Clear, guided examples

• Discussion opportunities from Think, Pair, Share

• Mini whiteboard section to check understanding and clarify misconceptions

• One structured task to practise key skills

• Challenge activity to extend and deepen learning

Perfect for engaging learners while reinforcing essential data and statistics concepts.