This is a complete lesson on finding quantities using ratio that looks at how to scale up quantities given a particular ratio to find unknown values. The lesson is designed with the new GCSE specification in mind.

- To use a ratio to find one quantity when the other is known.

This pack is designed for GCSE higher or foundation tier students. It could also be used with Key Stage 3 students.

Included in this download are the following:

- Full lesson plan for the ‘Finding Quantities Using Ratio’ lesson, including introduction, teaching content, individual activities, plenary and suggested support and extension activities
- Equivalent Ratios Introduction
- Student Worksheet on Finding Quantities Using Ratio
- Times Tables Square
- Complete Solutions to all Questions

This is the fourth lesson in the ‘Ratio’ unit of work (foundation tier) and also the fourth lesson in the ‘Ratio & Proportion’ unit of work (higher tier).

The Ratio unit is **available as a pack** including homework activities and a unit assessment. The other lessons in the unit are:

**Lesson 1 – Writing Ratios****Lesson 2 – Ratios in Simplest Form****Lesson 3 – Splitting a Number in a Ratio**

The Ratio & Proportion unit is also **available as a pack** with homework activities and a unit assessment. The other lessons in this unit are: