Students learn how to expand a pair of brackets with the constant and unknown on the outside. As learning progresses students expand brackets with terms involving powers and multiple unknowns.

The start of the lesson recaps simplifying expressions by collecting the like terms around the perimeter of a rectangle. The plenary is used to assess the progress made throughout the lesson by having students match up equivalent expressions.

**Differentiated Learning Objectives**

- All students should be able to expand a bracket with one unknown and the constant on the outside.
- Most students should be able to expand a bracket with multiple unknowns.
- Some students should be able to expand a bracket involving powers.