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Re: Real world problem  dumpster dives
Posted:
Jun 12, 1996 10:25 PM


During Earth Week, the civics teacher used 3 class periods one afternoon for a dumpster dive. That means pulling 24 hour's worth of trash out of the dumpster then sorting and weighing the recyclable materials. A few days later, I used their data in my math classes. We made the assumption that the data was representative of a typical day, then determined the percentages of each type of recyclable, predicted how much could be collected in a year, used current market prices to predict the value of a year's worth of each recyclabe material. We considered the costs of collection, storage, and transportation to a center that would purchase the materials. Costs had to include volume as well as weight. The result was a school decision to begin by selling the aluminum and splitting the resulting profits equally between the 4 high school classes  an estimated $500.00 per year. Other recyclables would continue to be collected but they would be given to the local recycling center because the costs of storage and transportation to a potential purchaser were greater than their value.
Earth Day 1997, we will reevaluate our recycling statisics and the dumpster contents.
Marge Cotton mcotton@aol.com Eureka Springs High School Eureka Springs, Ar



