The Explorations of Lewis and Clark

Because computers can track and remember different points of view and alternative decisions so much more easily than people, we find this feature more frequently on the Web than we would in hard copy. For example, in conjunction with its special television programs PBS and General Motors have mounted a Web site, devoted to the expeditions of Lewis and Clark. Students can begin one of the expeditions but, in this simulated version, can make different decisions than Lewis and Clark and trace the consequences.

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