Geocaching was originally similar to the 160-year-old game letterboxing, which uses clues and references to landmarks embedded in stories. Learn about how one teacher is using geocaching to engage students. Follow:@davidfisher65 @sghsscience @DiscoveryEd , @teach42@2teach_edtech @dacia92 @bamradionetwork Mark Case is a Science Teacher with a passion for student’s discovery of the world around them. First career was in environmental education running summer camps in 5 states. Full time classroom teacher since January 2007.