Students learn how to construct an angle bisector using a pair of compasses and ruler. As learning progresses they are challenged to use angle bisectors to identify an equidistant path between two lines.

The start of the lesson is used to recap using perpendicular bisectors to find the shortest path possible between a line and point. The plenary challenges students to identify a region that is equidistant between two lines and two points.

**Differentiated Learning Objectives**

- All students should be able to bisect an acute angle using a pair of compasses and ruler.
- Most students should be able to bisect and angle using a pair of compasses and ruler.
- Some students should be able to construct an angle bisector to identify an equidistant path.