Add proportional reasoning to your chemistry lessons

All around the UK, proportional reasoning and ratio tables are being used in maths lessons – and often in science lessons, too. But what does it look like in practice, and does it deserve the epithet ‘mathematical superpower’? Research suggests having a good grasp of proportional reasoning supports deeper conceptual understanding in the classroom. Starting with cupcakes, science teacher Alan Denton shares how to apply proportional reasoning chemistry topics for learners aged 11–18.