Expansion of Slavery

3

Social Studies

January 17, 2025

Unit 4: A Divided Country and Celebrated
Heroes
Lesson 2

4

LO:

SWBAT explain the central role of the expansion of slavery in
causing sectionalism, disagreement over states' rights, and the
Civil War and evaluate the effects of supply.

DOL:SW correctly explain the central role of the expansion of slavery
in causing sectionalism, disagreement over states' rights, and
the Civil War and evaluate the effects of supply in at least 1 of 2
questions.

SST.5.4D Explain the central role of the expansion of slavery in causing sectionalism, disagreement over states' rights, and the Civil War.

A Divided Country and Celebrated Heroes

2

Lesson Vocabulary

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Curriculum Design using
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Raw Materials

noun

Sectionalism

noun

Civil War

noun

Territory

noun

The basic, natural
substances or
unprocessed
resources that are
used to produce
goods, products, or
finished materials

The strong loyalty to
the interests of one's
own region or
section of the
country, rather than
to the country as a
whole

Conflict fought
between groups
within the same
country or nation,
often over political,
social, economic, or
ideological issues

A defined area of
land that is under the
jurisdiction of a
government or
authority but is not a
fully independent
state or country

Open Ended

Why do you think people in those regions felt differently about slavery?

Talk to your partner and then answer the question.

Sentence Stem:   People in these regions probably felt differently about slavery because…

WORD BANK: economy, plantations, labor

6

In the 1800s the North created
many factories that needed raw
materials from the South such as cotton.

Differences in geography and industrialization shaped the the culture and economy of the North and South and divided the two regions.

This was called sectionalism and many feared it would lead to a civil war.

Multiple Choice

Look at the graph.

How did the North’s demand for raw materials affected the South?

Sentence stem: The North’s demand for raw materials affected the South by…

• The North’s demand for raw materials resulted in fewer slaves being needed in the South.
• The North's demand for raw materials affected the south by increasing the plantation system which required more slaves

• The North’s demand for raw materials caused the South to industrialize rapidly.
• The North’s demand for raw materials led to a decrease in Southern agriculture.

8

Westward expansion in the 1800s added vast new territories to the United States

These territories sparked fierce
debates about whether slavery would be allowed.

9

Economic Impact: Southern states wanted slavery in new territories to grow their economy.

Moral Opposition: Northern
states and abolitionists opposed the spread of slavery because of people’s suffering.

States’ Rights vs. Federal
Authority: Who should decide if a territory allows slavery—state governments or the federal government?

Key Issues

​SILENT SOLO

Multiple Choice

Why did the South want slavery in new territories, and why did the
North oppose it?

• The South wanted slavery to grow its economy, while the North opposed it for moral reasons and states rights

• The South opposed slavery in new territories, but the North wanted it to expand

• Both the North and South wanted slavery to expand for economic growth

• Neither the North nor the South cared about slavery in new territories

Open Ended

Read and answer the question.

Why did the Kansas-Nebraska Act lead to violence in Kansas, and what does this tell us about the U.S. at the time?

SENTENCE STEM: The Kansas-Nebraska Act led to violence in Kansas because…
This shows that the U.S. was… about the issue of slavery.

11

Northwest

Ordinance (1787)

● Prohibited slavery

in the Northwest
Territory (north of
the Ohio River).

● Established a

precedent for
banning slavery in
new territories.

Missouri

Compromise (1820)

● Missouri admitted

as a slave state;
Maine as a free
state to maintain
balance.

● Mason-Dixon line

was made up to
show which states
could allow
slavery.

Compromise of 1850

● California admitted

as a free state.

● Enacted the

Fugitive Slave Act,
requiring escaped
slaves to be
returned to owners.

● Allowed people to

vote on slavery

Multiple Choice

What did the Underground Railroad become?

• A secret network helping enslaved people escape to free states and Canada.
• A network for transporting mail across states.
• A social club for abolitionists.
• A transportation system for goods and services.

Multiple Choice

What caused the civil war to eventually begin?

Sentence stem: The Civil war began soon due to....

• Cultural differences in art and literature.
• The fight over slavery and division between the North and South.
• Economic disputes over trade tariffs.
• Disagreements on foreign policy.