These sites provide ideas, activities, lesson plans, and projects to incorporate Global Positioning System (GPS) in curriculum. Includes a searchable database, data sets, and GIS applications. There is a link to eThemes Resource on GPS Systems and Geocaching.
Learn about a 24-satellite constellation situated around Earth to provide people with a Global Positioning System. Find out about new popular Geocaching game or GPS treasure hunt. Learn how to read clues of your surroundings and get oriented in unfamiliar places. Includes photographs, maps, and latitude and longitude finders.