Divide class into groups of three or four students. Give each group a large sheet of paper, a pen and two or three of the items from the tray. Have them take one item at a time and brainstorm as many ways as possible to reuse that item. When groups are finished, ask them to share their ideas. If other students have additional ideas, ask groups to add the ideas to their lists.
Groups create posters to advocate reusing materials.
Give each group a large sheet of light-colored butcher paper. Explain that each group will have the opportunity to create a poster that will advocate reusing items instead of throwing them away. Reflect, summarize and discuss. Ask groups to present their posters to the class. Discuss how each poster meets the criteria.