Students learn how to work out the area of a triangle as half the area of a rectangle.

Learning progresses on to finding the area of composite shapes involving triangles.

**Differentiated Learning Objectives**

- All students should be able to calculate the area of a right-angled triangle as half of a rectangle.
- Most students should be able to derive the formula for the area of a triangle and use it.
- Some students should be able to calculate the area of a compound shape involving rectangles and triangles