Lesson 2 - Unit 3 Lesson 2 the Lewis and Clark Expedition...

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Unit 3 Lesson 2 - the Lewis and Clark Expedition  Lesson Objective:  In this lesson, the student will: Explain the significance of the Louisiana Purchase and the Lewis and Clark Expedition to the expansion  of the nation.  Identify how economic incentives and geography influenced early American explorations.  Once President Thomas Jefferson had secured the purchase of the Louisiana Territory, he persuaded Congress to  appropriate funds to “send intelligent officers, with ten or twelve men, to explore even to the western ocean.”  Jefferson had been curious about the land long before it was in the possession of the United States. Congress  approved the mission, and Jefferson selected  Meriwether Lewis , his private secretary and an experienced  explorer, to lead the expedition.  William Clark  was picked as his lieutenant. Jefferson called the group the  Corps  of Discovery Lewis and Clark were instructed to observe and record the entire range of natural history and ethnology of the  areas they explored, and note possible resources which would support future settlement. It was hoped that they  would discover a river route to the Pacific Ocean. In the weeks before they left, the expedition leaders met with  experts on flora and fauna, conferred with traders about the Upper Missouri regions and obtained maps made from  earlier expeditions. 
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