Florida SS.4.A.3.9

Social Studies4th GradeExploration and Settlement of Florida

The Standard

Explain how Florida (Adams-Onis Treaty) became a U.S. territory.

Florida Next Generation Sunshine State Standards for Social Studies

Teacher's field guide

What Students Need to Do: Students explain why Spain agreed to transfer Florida to the United States. They describe the treaty agreement, identify what each country gave up, and place the 1819 signing before the 1821 transfer.
What Mastery Looks Like: A student can name Spain and the United States as the two countries involved. The student explains that Spain ceded Florida, while the United States dropped claims to Texas and covered certain financial claims.
Common Misconceptions: Students may say Florida became a state immediately, but it first came under U.S. control as a territory. They may also say the United States paid Spain $5 million, rather than assuming claims owed to U.S. citizens.
How to Assess It: Use this exit ticket: In three sentences, explain how Florida changed from Spanish control to U.S. control, including the agreement, dates, and exchange.

Lesson moves

Give pairs a blank 1819 map, two colored pencils, and treaty fact cards to mark Spanish land, U.S. land, and boundary changes.
Ask students to write: Why would Spain and the United States each agree to the treaty, and what did each side give up?
Run a timeline relay with cards for negotiations, the 1819 signing, the 1821 transfer, and Florida’s territorial government.
Show a modern Florida map and ask students to trace how an international agreement changed who governed their home state.

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A ready-to-print activity worksheet aligned to SS.4.A.3.9, with an answer key for the teacher on its own page. No account needed.

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