Students learn how to draw diagrams to a scale using ratio notation.

As learning progresses they learn how to calculate scaled and actual distances from a diagram.

**Differentiated Learning Objectives**

- All students should be able to construct a scale drawing using a scale 1 : n.
- Most students should be able to construct and interpret a scale drawing using a scale 1 : n.
- Some students should be able to construct and interpret a scale drawing involving area.