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Source set · 7 sources ✓ Lesson ready

What caused the Civil War?

Laws, a Supreme Court decision, speeches, and secession documents let students build a causal argument for why the Union broke apart.

Timeline of key events →Gallery Walk: cartoon stations →

Teach it

✓ Lesson ready

A ready-to-run lesson for this set: Historian’s Lab: Station Rotation. Slides include a hook, one slide per source, directions, a take-a-stand vote, an exit ticket, and a teacher script in the speaker notes.

Make a copy (Lesson Slides)Make a copy (Lesson Plan + materials)

1. Hook: a striking quote 3-5 min

‘A house divided against itself cannot stand.’ I believe this government cannot endure permanently half slave and half free.
Abraham Lincoln, 1858 (quoted in the Lincoln-Douglas Debates)

Ask: Lincoln said this in 1858, three years before the war. What did he predict? Was he right?

2. Main activity: Historian’s Lab: Station Rotation

Grouping: Four stations, groups of 4 to 6, rotating every 7 minutes

Materials (printables are in the Lesson Plan Doc)
  • Four station cards (printable pages in the Lesson Plan Doc), one per table
  • A copy of each station’s source text or the Copy Doc versions from the set page
  • Station recording sheet for each student (in the Lesson Plan Doc)
  1. Launch 3 min
    Explain the lab: each station holds evidence about one cause. Students record the cause, one quote, and a rating from 1 (small push) to 5 (huge push toward war).
  2. Rotate 28 min
    Four stations, 7 minutes each. Give a 1-minute warning before each move.
  3. Whole-class closer 7 min
    Read Lincoln’s First Inaugural line together: “I have no purpose, directly or indirectly, to interfere with the institution of slavery in the States where it exists.” Ask: If Lincoln promised this, why did secession happen anyway?
  4. Rank the causes 7 min
    Students vote on the most important cause (see the vote slide) and defend it with one quote.
  5. Exit ticket 5 min
    Students answer on a slip before leaving.

Take a stand: Which cause did the most to push the nation into war?

  • A. The fight over slavery’s expansion into the territories (Kansas-Nebraska Act, Dred Scott, Lincoln-Douglas)
  • B. Laws and rulings that forced the North to take part (Fugitive Slave Act)
  • C. Southern leaders’ defense of slavery itself (South Carolina Declaration, Cornerstone Speech)
  • D. The breakdown of compromise after Lincoln’s election (Lincoln’s First Inaugural, secession winter)

3. Pacing options

15-minute bell-ringer

  • 3 min Hook: “A house divided” quote
  • 8 min Run only Station 4 as a whole class: read the South Carolina and Stephens quotes aloud and list the reasons they give
  • 4 min Exit ticket question 1

Full 50-minute lesson

  • 4 min Hook: Lincoln’s “house divided”
  • 3 min Launch the lab and recording sheet
  • 28 min Four stations, 7 minutes each
  • 7 min Lincoln’s First Inaugural closer
  • 5 min Vote and exit ticket
  • 3 min Buffer

4. Exit ticket

  1. Using two stations, explain how one event made the next conflict more likely.
  2. South Carolina’s declaration and Stephens’s speech both say why they left the Union. What reason do they give, in their own words?

5. Differentiation

Support

Extension

  • Add a fifth station: research the 1860 election map and decide whether Lincoln’s election was a cause or a trigger.
  • Compare how Douglas’s popular sovereignty and the Dred Scott decision contradicted each other (the “Freeport Doctrine” question).

Suggested sequence

  1. Fugitive Slave Act of 1850
    Document · Yale Avalon Project · Civil War & Reconstruction (1850-1877) · Grades 9-12 · ⏱ 15 min
    Text of the 1850 Fugitive Slave Act.
    Ask: How did the Fugitive Slave Act turn Northerners against slavery?
    Open with this source to frame the question.
    Original ↗Copy DocCopy AdaptedSOAPSToneHIPP / HAPP
  2. Kansas-Nebraska Act
    Document · Yale Avalon Project · Civil War & Reconstruction (1850-1877) · Grades 9-12 · ⏱ 15 min
    Text of the 1854 act organizing Kansas and Nebraska territories.
    Ask: Why did the Kansas-Nebraska Act lead to violence?
    Original ↗Copy DocCopy AdaptedSOAPSToneHIPP / HAPP
  3. Dred Scott v. Sandford
    Court case · National Archives · Civil War & Reconstruction (1850-1877) · Grades 9-12 · ⏱ 15 min
    1857 Supreme Court decision on citizenship and slavery.
    Ask: How did the Dred Scott decision push the nation toward war?
    Original ↗Copy DocCopy AdaptedHIPP / HAPPClaim-Evidence-Reasoning (CER)▶ Watch
  4. The Lincoln-Douglas Debates (1858)
    Document collection · Teaching American History · Civil War & Reconstruction (1850-1877) · Grades 9-12 · ⏱ 30+ min
    Teaching American History collection of the 1858 Senate debates between Abraham Lincoln and Stephen Douglas.
    Ask: How did Lincoln and Douglas disagree about slavery's future?
    Original ↗Sourcing, Contextualization, CorroborationHIPP / HAPP▶ Watch
  5. South Carolina Declaration of Secession
    Document · Yale Avalon Project · Civil War & Reconstruction (1850-1877) · Grades 9-12 · ⏱ 15 min
    South Carolina's 1860 statement of the causes justifying its secession.
    Ask: According to South Carolina itself, why did it leave the Union?
    Original ↗Copy DocSOAPSToneHIPP / HAPP
  6. Alexander Stephens, Cornerstone Speech (1861)
    Speech · Wikisource · Civil War & Reconstruction (1850-1877) · Grades 9-12 · ⏱ 30+ min
    Confederate Vice President Stephens's March 1861 speech declaring slavery the 'cornerstone' of the Confederacy.
    Ask: What did Confederate leaders say was the cause of secession?
    Original ↗Copy DocSOAPSToneHIPP / HAPP
  7. Lincoln's First Inaugural Address
    Speech · Yale Avalon Project · Civil War & Reconstruction (1850-1877) · Grades 9-12 · ⏱ 20 min
    Lincoln's March 1861 appeal to the seceding South to preserve the Union.
    Ask: How did Lincoln try to prevent war while rejecting secession?
    Close with this source before writing.
    Original ↗Copy DocCopy AdaptedSOAPSToneHIPP / HAPP

Watch

Free videos to pair with this set. Preview before showing in class.

Teach with (more from Hillsdale): Unit 4: The American Civil War (1848-1877) (free K-12 curriculum unit)

Culminating writing prompt

Using evidence from at least three sources in this set, write an argument that answers the question: “What caused the Civil War?” Cite each source by title, explain how its author, audience, and purpose affect its reliability, and respond to at least one counterargument.

Printable writing sheet (make a copy)

Students can plan with the Claim-Evidence-Reasoning organizer.