| http://www.w3.org/ns/prov#value | - Here are some classroom resources to help mark Earth Day: www.sharemylesson.com The American Federation of Teachers' website features lesson plans that focus on the environment, including topics such as recycling, rain forests, earthquakes and preserving natural resources. www.teachervision.fen.com/earth-day/teacher-resources The TeacherVision website has K-12 lessons and other resources, includin
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