In teams of three students must sort 3 real life (cleaned) trash items into the best conservation category of reduce, recycle and reuse. As a team they must tell the class why they choose each category for each item and why it is the best choice for that item.

For example: Styrofoam – the best choice may be to reduce or use less as it is more expensive to recycle than it is just to make new Styrofoam, it never decomposes and it may not be a functional tool for reusing. The key to this collaboration is in the argument because there is not just one right answer.