Students learn about finding the highest common factor of numbers and terms. More able student learn how to find the highest common factor of expressions.

At the start of the lesson students recap finding factors of numbers and simple terms. In the main phase they find the factors of numbers and terms to select the highest factor that is common to all values. At the end of the lesson they are challenged to solve a real life problem by finding the highest common factor of two numbers.

**Differentiated Learning Objectives**

- All students should be able to calculate the highest common factor of two integers when given their factors.
- Most students should be able to calculate the highest common factor of two or more integers.
- Some students should be able to calculate the highest common factor of two or more terms.

**Related Blogs**

5 ways how to connect factor pairs to other areas of maths