Students learn about expressing one number as a percentage of another number using both calculator and non-calculator methods. As learning progress they use percentages to compare different proportions from real life problems.

The start of the lesson is used to recap finding equivalent fractions, decimals and percentages. The plenary challenges students to apply their learning to solve a problem involving perimeter.

**Differentiated Learning Objectives**

- All students should be able to define percentage as ‘number of parts per hundred’.
- Most students should be able to define percentage as ‘number of parts per hundred’ and express one quantity as a percentage of another.
- Some students should be able to write a percentage change.