Rastreador de basura

They will make notes of all the items they throw away in the first week, while at the second week they make an effort to generate as little trash as possible. Students compare the data between the first and the second week and between themselves. Using the data of the whole class they calculate how much trash they produce together in a year. The activity can be found on page 6 of the Educator's Guide.

As an introduction you can show the short documentary 'La historia de las cosas' (https://www.youtube.com/watch?v=ykfp1WvVqAY), which you have to download first.