The goal of Composting in the Classroom is to provide high school science teachers with the background needed to engage students in research focusing on composting. There are a number of reasons why composting research lends itself well to the classroom setting. First, composting of yard wastes and food scraps presents a partial solution to the solid waste crisis; thus, composting research addresses practical problems of concern to students and their communities. Second, nearly all the equipment and materials are inexpensive and readily available. With proper maintenance to prevent odor and insect problems, composting systems can be set up in the classroom, as well as outdoors in the school yard. Finally, many experiments can be conducted within two weeks or less, although long-term composting research projects are also possible.