Divide In A Given Ratio — Interactive Maths Lesson (KS3)

By the end of this unit, students will:

1. understand the concept of dividing quantities in a given ratio and use this to divide quantities based on a given ratio;
2. apply their knowledge of ratio division to real-world scenarios.

Curriculum Alignment: Key Stage 3: Ratio, proportion and rates of change

• use ratio notation, including reduction to simplest form
• divide a given quantity into 2 parts in a given part:part or part:whole ratio; express the division of a quantity into 2 parts as a ratio
• understand that a multiplicative relationship between 2 quantities can be expressed as a ratio or a fraction
• relate the language of ratios and the associated calculations to the arithmetic of fractions and to linear functions

Designed for ages 11–14 (UK Year 7–9). Aligned to the UK National Curriculum; adaptable to US state standards.