This is a complete lesson on predicting points on a scatter graph that looks at how to use a line of best fit to estimate values, explores the difference between interpolation and extrapolation and looks at the reliability of such predictions. The lesson is designed with the new GCSE specification in mind.

### Lesson Objectives

- To use a line of best fit to predict values of a variable given the value of the other variable.
- To interpolate and extrapolate trends whilst knowing the danger of so doing.
- To state how reliable predictions are.

### Who is this Lesson For?

This pack is designed for GCSE higher or foundation tier students. It could also be used with Key Stage 3 students.

### What is Included?

Included in this download are the following:

- Full lesson plan for the ‘Predicting Points on a Scatter Graph’ lesson, including introduction, teaching content, individual activities, plenary and suggested support and extension activities
- Predicting Points on a Scatter Graph Introduction
- Student Worksheet on Predicting Points on a Scatter Graph
- Predicting Points on a Scatter Graph Ready Drawn Axis
- Complete Solutions to all Questions

### Lesson Progression

This is the fourth lesson in the ‘Scatter Graphs’ unit of work (the unit is also **available as a pack** including homework activities and a unit assessment).

The other lessons in the unit are: