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!