LESSON 2.1 · SS.3.A.1.1–SS.3.A.1.3
Think Like a Historian
Learning goal: Use primary and secondary sources to answer questions about the past.
What to know
- A primary source was created by someone who experienced the time or event; examples include letters, photographs, artifacts, and interviews.
- A secondary source explains the past later, often by combining several sources.
- Historians compare sources, notice point of view, and support conclusions with evidence.
- Digital collections can help locate sources, but the source and its context still matter.
KEY VOCABULARY
SEMINOLE COUNTY CONNECTION
Historic photographs, school yearbooks, maps, and oral histories can provide evidence about how Lake Mary and Seminole County changed over time.
THINK LIKE A SOCIAL SCIENTIST
What could an old school photograph prove, and what question would require another source?

A historical photograph is a primary source. Ask: Who made it, when, what can we observe, and what can it not tell us?
Library of Congress · public domain · source details ↗Use the evidence
A 1904 photograph of new arrivals is a primary source. A modern textbook chapter explaining immigration is a secondary source. Together they answer different questions.
WATCH & NOTICE
The Immigration History of the United States
From Knowledgia
Look for push and pull factors, then compare the video’s explanation with the historical photograph.
Open video on YouTube ↗