Students use place value to round a number to a significant figure.

As learning progresses, they are challenged to approximate square and cube roots.

**Differentiated Learning Objectives**

- All students should be able to round a positive number, greater than one to one significant figure.
- Most students should be able to round any number to one or more significant figures.
- Some students should be able to calculate the limits of accuracy when a number has been rounded to a significant figure.

**Scheme of Work**

Accuracy and Rounding Foundation

Estimations and Limits of Accuracy Higher