Students learn to manipulate the various formulae associated with sectors.

Later, as learning progresses, they are challenged to solve more complex problems with and without a calculator.

**Differentiated Learning Objectives**

- All students should be able to manipulate the formula for the arc length of a sector.
- Most students should be able to manipulate the formula for the arc length and area of sectors.
- Some students should be able to derive known facts for problems involving sectors by manipulating the formulae.