Ratio, Proportion & Rates of Change

This  collection of resources supports the teaching of  ratio, proportion & rates of change in secondary mathematics.


Here are some favourite activities selected by the NRICH team.


  • Mixing Lemonade Can you work out which drink has the stronger flavour?
  • Olympic Measures These Olympic quantities have been jumbled up! Can you put them back together again?
  • Thousands and Millions Here's a chance to work with large numbers...
  • Place your orders Can you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?

These are just a few of the activities on Ratio, Proportion & Rates of Change that you can find on the NRICH curriculum pages.





The activities below, taken from the STEM Learning website, complement the NRICH activities above.