Assign your class to investigate household waste in their own homes. They are to collect garbage and weigh it on a bathroom scale. They then separate it into categories: compostable, recyclable, reuseable, renewable, and landfill-destined. They re-weigh the material by category and calculate the percentage of total trash represented. Prior teaching on what defines the categories is required, as well as how to calculate percentages. Consider creating a worksheet to guide learners through the process.
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