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Google Earth is a free download that allows you to explore everything from a single star in the sky to a 2 foot bush on your own front lawn. Upon opening the program, you begin by navigating a virtual globe by simply moving across the earth with your mouse, zooming into specific locations, or choosing longitude and latitude coordinates or programmed tours. The possibly explorations and learning for the user are endless and the program is friendly to use too. The program allows you to fly under the ocean's surface, view images of historical earth, see the sun's shadows on earth at any chosen time, visit real high resolution imaged volcano sites, travel to Ancient Rome or explore a 360 degree panorama of Taj Mahal or the Black Desert. Contributions made by The New York Times, National Geographic, and You Tube provide information on global issues, historicall landmarks & events, and knowledge about deep sea creatures.
Google Earth is a wonderful tool to use in the classroom to support curriculum. I followed discussions on cross curricular uses of Google Earth on a Classroom 2.0 thread and learned the many ways teachers are applying this technology in the classroom. The main point I learned from following these discussions is that Google Earth can be used on many different levels and can strengthen the connections drawn between different subject areas and lesson objectives. For example, one teacher used Google Earth with his class to track, plot, graph, and write about typhoons that have hit their specific region. Students measured data, made scientific predictions, created graphical representations of history and the geological effects typhoons have on earth. In addition, they connected real life occurrences to learning. In this example, the teacher promoted learning related to math, science, history, and geology.
Also, check out realworldmath.org for great ideas on using Google Earth in real-world math activities.