This is one of a series of units for environmental education developed by the Highline Public Schools. This unit is designed to direct intermediate grade pupils to positive attitudes and actions in the preservation of their environment. The culminating activity is the construction and placement of positive ecology signs. The goals of this unit are to: (1) foster positive ecological attitudes; (2) become involved in community action; and (3) use elementary construction methods and tools. The time suggested for the unit is three weeks. (RH)