Oklahoma Social Studies 5.C.7.3.A
The Standard
- 5.C.7
- Summarize the growth of a new nation under the leadership of Presidents Washington, Adams, and Jefferson.
- 5.C.7.3
- Explain the impact of President Thomas Jefferson’s presidency, including
the purchase of Louisiana Territory and its effect on westward expansion
Oklahoma Academic Standards for Social Studies (2026) · 5.C.7.3
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students locate the land the United States bought from France in 1803. They explain how the purchase encouraged travel and settlement west, where Indigenous nations already lived.
What Mastery Looks Like
- A student can shade the purchased land on a map and point to the Mississippi River and New Orleans. They can explain why access to the river and port mattered, and why settlement did not happen all at once.
Common Misconceptions
- Some students think the purchase was one state or included the entire American West. Others think the land was empty or that families settled all of it right after 1803.
How to Assess It
- Give students an 1803 map. Ask them to shade the purchased land and write two sentences: How did the purchase affect westward movement, and who already lived there?
Lesson moves
Ways to Teach It
Give pairs an outline map and an 1803 boundary map; have them shade the purchased land, label the Mississippi River, and circle New Orleans.
Ask, 'How might the purchase affect settlers and Indigenous nations already living there?' Have students write two sentences using a map detail.
Have students sort cards labeled 'France sells territory,' 'more western exploration,' and 'land was empty' into cause, effect, and false claim.
Compare a modern Oklahoma map with an 1803 purchase map; have students find their town and check whether it lay inside the purchase.
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Related Standards
- 8.C.9.2.A
Summarize the series of events and the processes used to annex Texas, as well as acquire the Mexican Cession and the Gadsden Purchase.
- 8.C.9.2
Analyze the territorial growth of the United States of America and the consequences of westward expansion.
- 8.C.6.3.A
promote a western expansionist policy through the acquisition of the Louisiana Territory and authorization of the Lewis and Clark Corps of Discovery Expedition.
- USH.C.1.3.A
Explain the impact of the Homestead Act, the completion of the Transcontinental Railroad, and the purchase of Alaska on settlement patterns and Native populatio...
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