British Library
British Library: The Search for the Northwest Passage
Detailed third grade lessons help students understand what skills and knowledge were required in order to become an explorer. Includes specific lessons on John Cabot, Jacques Cartier, and Henry Hudson.
University of Calgary
European Voyages of Exploration: Portugal
This site provides an in-depth historical detail on the rise of Portuguese trade and exploration. Special attention is given to the history of the Portuguese monarchy and the conditions that led to the nation's rise in power. Further...