See Lesson kits below (KS1 for ages 5-7 & KS2 for ages 7-11) for Fairtrade Fortnight.
More details available here.
KS1 & KS2 COMMUNITY 7 - Conservation with The Big Questions: (KS1) Saving Clothes - What happens to your clothes when you have finished with them? (KS2) Responsible Consumption - Do you consume in a responsible way?