4.17 Stratified Sampling GCSE PowerPoint Lesson

In this 19-slide lesson, students will learn what stratified sampling is and why it is used in statistics to ensure fair and representative data collection. They will learn how to calculate the number of people to sample from each group using the formula: (sample size ÷ population size) × group size.

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.