Food Impacts

Students should not be expected, or expecting, to get all the labels in the correct place on their first attempt!  Encourage them to change the ordering of the "wrong" labels after pressing submit, and iterate this process until they arrive at the correct ordering.

Students could discuss some of the reasons behind the wide range in some of the foods.

You can find out more information in this BBC article, which also contains a calculator to look at the impact of various items.

This problem is one of a collection designed to develop students' carbon numeracy; we hope it will encourage students to think about the issues surrounding climate change.  You can find the complete collection here.

This problem also featured in an NRICH Secondary webinar in November 2021.