Connected ratios

A complete lesson on connected ratios, with the 9-1 GCSE in mind. The lesson is focused on problems where, for example, the ratios a:b and b:c are given, and pupils have to find the ratio a:b:c in its simplest form. Assumes pupils have already learned how to generate equivalent ratios and share in a ratio- see my other resources for lessons on these topics.

Activities included:

Starter:
A set of questions to recap equivalent ratios.

Main:

• A brief look at ratios in baking, to give context to the topic.
• Examples and quick questions for pupils to try. Questions are in the style shown in the cover image.
• A set of questions for pupils to consolidate.
• A challenging extension task where pupils combine the techniques learned with sharing in a ratio to solve more complex word problems in context.

Plenary:
A final puzzle in a different context (area), that could be solved using connected ratios and should stimulate some discussion.

Printable worksheets and answers included.

Please review if you buy as any feedback is appreciated!