Florida SS.5.A.6.1

Social Studies5th GradeGrowth and Westward Expansion

The Standard

Describe the causes and effects of the Louisiana Purchase.

Florida Next Generation Sunshine State Standards for Social Studies

Teacher's field guide

What Students Need to Do: Students explain why the United States wanted New Orleans and access to the Mississippi River, and why France agreed to sell the land. They connect the purchase to expansion, exploration, settlement, and conflict with Indigenous nations.
What Mastery Looks Like: Students can place key causes and effects in a clear chain. They can explain that the purchase doubled the nation’s size and changed trade, settlement, and control of western lands.
Common Misconceptions: Students may think the United States bought the land from Spain or that Louisiana meant only the present-day state. They may also treat expansion as entirely positive and overlook its effects on Indigenous nations.
How to Assess It: Give students six event cards and ask them to label each as a cause or effect, then explain one cause-effect connection in writing.

Lesson moves

Use a map, string, and sticky notes to mark the Mississippi River, New Orleans, existing states, and the purchased territory.
Ask students to write: Why did control of New Orleans matter to farmers living west of the Appalachian Mountains?
Play a cause-and-effect card match using events such as French war debt, river access, exploration, settlement, and Indigenous displacement.
Compare the purchase price and land area with a local property listing, then discuss why governments value location, resources, and transportation routes.

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