Step 1:

Set up two boxes for used paper next to the trash can. Label one, "Reusable" and the other "Not Reusable."

Step 2:

Discuss what would be considered reusable paper.

Step 3:

Tell the children that all used classroom paper should be placed (not crumpled) in the appropriate box instead of thrown out. Do this for five days without reusing any paper from the box.

Step 4:

Weigh and graph the amount of each type of paper. At this point, encourage the reuse of paper. The non-reusable paper can be used to make new paper.