This is a complete lesson on likelihood and the probability scale that looks at how to express the likelihood of an event using words or using a scale from 0 to 1. The lesson is designed with the new GCSE specification in mind.

- To distinguish between events that are impossible, unlikely, even chance, likely and certain to occur.
- To mark events on a probability scale.

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

Included in this download are the following:

- Full lesson plan for the ‘Likelihood & The Probability Scale’ lesson, including introduction, teaching content, individual activities, plenary and suggested support and extension activities
- The Probability Scale
- Student Worksheet on Likelihood & The Probability Scale
- Probability Fact Sheet
- Complete Solutions to all Questions

This is the first lesson in the Probability (Foundation Tier) 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:

**Lesson 2 – Calculating Probabilities****Lesson 3 – Experimental & Theoretical Probability****Lesson 4 – Relative Frequency & Expected Frequency****Lesson 5 – Sample Space Diagrams****Lesson 6 – Probabilities of Independent Events****Lesson 7 – Probability Trees (With Replacement)****Lesson 8 – Probability Trees (Without Replacement)**