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Created byBenjamin Fry
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Containment: The Truman Doctrine, Marshall Plan, and Global Competition

Grade 10HistorySocial Studies5 days
Students investigate the global legacy of the United States’ Cold War containment policies, focusing on the Truman Doctrine and the Marshall Plan. Through primary source analysis and case studies of proxy conflicts in the Global South, learners evaluate whether these interventions were essential defenses of democracy or problematic overreaches of power. The project culminates in a structured debate and a policy briefing that connects historical precedents to modern-day American foreign aid and diplomatic strategies.
ContainmentTruman DoctrineMarshall PlanDomino TheoryProxy WarsForeign PolicyGeopolitics
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Inquiry Framework

Question Framework

Driving Question

The overarching question that guides the entire project.How should we evaluate the global legacy of the United States’ Cold War policies of containment and aid to determine whether they were a necessary defense of democracy or a problematic overreach of power?

Essential Questions

Supporting questions that break down major concepts.
  • How did the shift from isolationism to the Truman Doctrine change the United States' role on the global stage?
  • To what extent was the Marshall Plan motivated by humanitarianism versus strategic political interests?
  • How did the policy of containment manifest differently in Europe compared to its implementation in Southeast Asia, Africa, and the Caribbean?
  • What were the long-term social and political consequences for nations caught in the 'competition' between the U.S. and the Soviet Union?
  • Was the 'domino theory' an accurate assessment of the spread of Communism, or did it oversimplify complex regional conflicts?
  • How do the precedents set by the Marshall Plan and Truman Doctrine continue to influence modern American foreign policy and foreign aid?

Standards & Learning Goals

Learning Goals

By the end of this project, students will be able to:
  • Analyze the transition of United States foreign policy from isolationism to global interventionism through the Truman Doctrine and the Marshall Plan.
  • Evaluate the economic, political, and humanitarian motivations behind the Marshall Plan and its impact on post-WWII European recovery.
  • Compare and contrast the implementation and outcomes of containment policies across different geopolitical regions, including Europe, Southeast Asia, and Africa.
  • Assess the validity of the 'Domino Theory' by examining specific case studies such as the Korean War, the Vietnam War, and conflicts in the Caribbean.
  • Construct a multifaceted argument that weighs the necessity of Cold War containment against the social and political costs for the nations involved.
  • Synthesize connections between Cold War-era foreign aid precedents and contemporary American diplomatic and military engagement.

California History-Social Science Content Standards (Grade 10)

HSS-10.9.3
Primary
Understand the importance of the Truman Doctrine and the Marshall Plan, which established the pattern for America’s postwar policy of supplying economic and military aid to prevent the spread of Communism and the resulting economic and political competition in arenas such as Southeast Asia (i.e., the Korean War, Vietnam War), Cuba, and Africa.Reason: This standard directly mirrors the project's core focus on the Truman Doctrine, Marshall Plan, and the global spread of containment.
HSS-10.9.2
Primary
Analyze the causes of the Cold War, with the free world on one side and Soviet client states on the other, including competition for influence in such places as Egypt, the Congo, Vietnam, and Chile.Reason: The project specifically investigates the competition for influence in the Global South and the consequences for those nations.

Common Core State Standards for Literacy in History/Social Studies

CCSS.ELA-LITERACY.RH.9-10.1
Secondary
Cite specific textual evidence to support analysis of primary and secondary sources, attending to such features as the date and origin of the information.Reason: Students will need to use primary and secondary source evidence to evaluate the legacy of Cold War policies.
CCSS.ELA-LITERACY.RH.9-10.9
Supporting
Compare the point of view of two or more authors for how they treat the same or similar topics, including which details they include and emphasize in their respective accounts.Reason: This aligns with the inquiry into whether policies were 'necessary defense' or 'problematic overreach,' requiring analysis of differing historical perspectives.

National Standards for History (NCHS)

NCHS.Era9.2A
Primary
Analyze the development of United States foreign policy since World War II, including the role of the United Nations, the Cold War, and the impact of these on domestic and foreign affairs.Reason: This national history standard covers the broad evolution of US policy and its global impact as explored in the project framework.

Entry Events

Events that will be used to introduce the project to students

Containment: The High-Stakes Strategy Simulation

The classroom is divided into 'Spheres of Influence' where students play a fast-paced resource management game. They must trade 'Stability Points' to prevent their region from flipping to an opposing team, discovering that every 'aid' card they accept from the U.S. or USSR player comes with a 'Proxy Cost'—a future conflict in Vietnam, Cuba, or Africa. This gamified experience illustrates the long-term, global ripple effects of the Truman Doctrine.
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Portfolio Activities

Portfolio Activities

These activities progressively build towards your learning goals, with each submission contributing to the student's final portfolio.
Activity 1

The Architect’s Blueprint: Decoding the Containment Strategy

In this introductory activity, students act as historical analysts to dissect the core documents that launched the Cold War policy of containment. They will examine Harry Truman’s 1947 speech to Congress and the rationale behind the Marshall Plan to understand how the U.S. transitioned from isolationism to global leadership. The focus is on identifying the specific economic and military 'tools' the U.S. intended to use to prevent the spread of Communism in post-war Europe.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Read excerpts from President Truman’s 1947 address to Congress and highlight the specific 'threats' he identifies.
2. Analyze a primary source document or propaganda poster related to the Marshall Plan to identify how economic aid was marketed to the public.
3. Complete a 'Motivations Matrix' categorizing U.S. actions as either humanitarian, economic, or strategic/military.
4. Synthesize your findings into a visual blueprint that illustrates the 'structure' of American foreign policy in 1947.

Final Product

What students will submit as the final product of the activityA 'Foundations of Containment' Blueprint—a visual graphic organizer that maps out the goals, methods, and intended outcomes of the Truman Doctrine and Marshall Plan.

Alignment

How this activity aligns with the learning objectives & standardsAligns with HSS-10.9.3 (Understand the importance of the Truman Doctrine and the Marshall Plan) and CCSS.ELA-LITERACY.RH.9-10.1 (Cite specific textual evidence to support analysis of primary and secondary sources).
Activity 2

Falling Dominoes: Containment Goes Global

Moving from Europe to Asia, students will investigate how the logic of the Truman Doctrine was applied to the Korean and Vietnam Wars. They will explore the 'Domino Theory'—the idea that if one nation fell to Communism, neighbors would follow—and evaluate whether this theory was an accurate assessment or a dangerous oversimplification that led to protracted conflict.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Define the 'Domino Theory' using historical quotes from Eisenhower or LBJ.
2. Create a comparative map showing the 'Iron Curtain' in Europe versus the 'Bamboo Curtain' in Asia, noting key military flashpoints.
3. Analyze a primary source from the Korean or Vietnam War (e.g., a soldier's letter or a political cartoon) to see how containment was perceived on the ground.
4. Write a 1-page report evaluating whether the U.S. intervention in these regions was a direct extension of the Truman Doctrine or a significant shift in policy.

Final Product

What students will submit as the final product of the activityA 'Domino Theory' Investigative Report, featuring a comparative map and a written analysis of the successes and failures of containment in Asia.

Alignment

How this activity aligns with the learning objectives & standardsAligns with HSS-10.9.3 (Patterns for aid in Southeast Asia) and HSS-10.9.2 (Competition for influence in Vietnam and Korea). This activity specifically targets the 'Domino Theory' learning goal.
Activity 3

The Proxy Price: Voices from the Global South

This activity shifts the lens from Washington D.C. to the nations directly impacted by U.S. and Soviet competition. Students will choose a case study—such as the Congo, Cuba, or Chile—to research how local leaders and citizens navigated being 'pawns' in the Cold War. They will look for evidence of how aid often came with strings attached, leading to internal political instability.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Select one non-European Cold War theater (e.g., the Cuban Missile Crisis, the Lumumba assassination in Congo, or the coup in Chile).
2. Research the 'Proxy Cost': How did U.S. or Soviet aid affect the internal politics and social stability of that nation?
3. Find two conflicting primary sources: one from a U.S. official justifying the intervention and one from a local leader or citizen describing its impact.
4. Design a presentation that highlights the 'collateral damage' of containment in the Global South.

Final Product

What students will submit as the final product of the activityA 'Two Sides of the Coin' Multimedia Presentation or Digital Poster comparing the U.S. perspective of 'aid' with the local perspective of 'intervention.'

Alignment

How this activity aligns with the learning objectives & standardsAligns with HSS-10.9.2 (Competition for influence in Cuba and Africa) and CCSS.ELA-LITERACY.RH.9-10.9 (Compare the point of view of two or more authors).
Activity 4

The Great Cold War Trial: Defense or Overreach?

Students will now synthesize everything they have learned to address the project's Driving Question. They will participate in a Structured Academic Controversy (SAC), a collaborative debate format where they must argue both sides—defense of democracy vs. overreach of power—before trying to reach a consensus. This activity requires high-level critical thinking and the integration of multiple historical perspectives.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Review all evidence gathered in Activities 1-3 and categorize it into 'Necessary Defense' or 'Problematic Overreach.'
2. Participate in a Structured Academic Controversy, first arguing for the necessity of containment, then switching sides to argue the costs of overreach.
3. Abandon the assigned roles and engage in a whole-group discussion to find 'middle ground' or common themes.
4. Draft a formal outline for an essay that answers the Driving Question, citing at least four specific historical examples.

Final Product

What students will submit as the final product of the activityA Consensus Statement and Argumentative Essay Outline that weighs the necessity of Cold War policies against their long-term global costs.

Alignment

How this activity aligns with the learning objectives & standardsAligns with RH.9-10.1 (Citing evidence) and NCHS.Era9.2A (Analyze development of US foreign policy). This serves as the summative evaluation of the driving question.
Activity 5

Modern Echoes: The Living Legacy of 1947

In this final portfolio piece, students connect the past to the present. They will research a modern-day example of U.S. foreign aid or military presence (e.g., aid to Ukraine, presence in the Middle East, or humanitarian efforts in Africa) and identify the 'DNA' of the Truman Doctrine or Marshall Plan in these modern policies. This helps students understand that history is a living process.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Identify a current U.S. foreign policy issue involving either military aid or economic development.
2. Find three specific similarities between the modern policy and the Marshall Plan or Truman Doctrine (e.g., 'preventing instability,' 'promoting democracy').
3. Interview or research 'modern critics' of this policy to see if their arguments mirror the Cold War-era criticisms of overreach.
4. Produce a final 'Legacy Briefing' that explains how the precedents set in 1947 still shape our world today.

Final Product

What students will submit as the final product of the activityA 'Modern Policy Briefing'—a 2-minute video or written brief comparing a 20th-century Cold War policy to a 21st-century U.S. foreign policy.

Alignment

How this activity aligns with the learning objectives & standardsAligns with NCHS.Era9.2A (Impact of policy on domestic and foreign affairs) and the goal of synthesizing connections to contemporary American engagement.
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Rubric & Reflection

Portfolio Rubric

Grading criteria for assessing the overall project portfolio

Cold War Containment: Defense vs. Overreach Portfolio Rubric

Category 1

Historical Analysis & Evidence

Assesses the student's ability to interpret historical documents and understand the foundational shifts in post-WWII American foreign policy.
Criterion 1

Historical Foundations of Containment (HSS-10.9.3)

How well the student analyzes the transition from isolationism to interventionism using the Truman Doctrine and Marshall Plan.

Exemplary
4 Points

Demonstrates a sophisticated, nuanced understanding of 1947 policies; identifies subtle economic/military connections and innovatively synthesizes the 'Foundations of Containment' blueprint with exceptional detail.

Proficient
3 Points

Demonstrates a thorough understanding of the Truman Doctrine and Marshall Plan; clearly identifies the economic and military tools used to prevent the spread of Communism.

Developing
2 Points

Shows an emerging understanding of the policies; identifies basic goals of the Truman/Marshall plans but may struggle to differentiate between economic and military motivations.

Beginning
1 Points

Shows initial understanding; identifies names of policies but struggles to explain their purpose or the shift away from isolationism.

Criterion 2

Evidence-Based Analysis (RH.9-10.1)

The ability to cite specific textual evidence from primary and secondary sources (e.g., Truman's address, propaganda, soldiers' letters).

Exemplary
4 Points

Cites comprehensive, high-quality textual evidence from diverse sources; analyzes the origin and context of the information to provide a deep historical critique.

Proficient
3 Points

Cites specific textual evidence to support analysis of primary and secondary sources; correctly identifies the date and origin of sources.

Developing
2 Points

Uses some evidence from sources but citations may be incomplete or inconsistent; evidence only partially supports the historical claims made.

Beginning
1 Points

Provides insufficient evidence; claims are largely unsupported by the provided documents or sources.

Category 2

Global Perspectives & Causality

Focuses on the global application of containment and the diverse perspectives of nations caught between the superpowers.
Criterion 1

Global Reach & Domino Theory (HSS-10.9.2)

Evaluating the validity of the Domino Theory and its implementation in Southeast Asia, Africa, and Cuba.

Exemplary
4 Points

Provides a masterful evaluation of the Domino Theory; uses complex case studies to prove why it was either a valid assessment or a dangerous oversimplification with profound global consequences.

Proficient
3 Points

Effectively assesses the Domino Theory using case studies like Korea or Vietnam; comparative maps clearly show the reach of the Iron and Bamboo curtains.

Developing
2 Points

Identifies the Domino Theory and its basic application in Asia; map work is mostly accurate but lacks detail in comparing different geopolitical regions.

Beginning
1 Points

Shows limited understanding of the Domino Theory; struggles to map regional conflicts or connect them to broader Cold War competition.

Criterion 2

Perspective Taking & Proxy Costs (RH.9-10.9)

Analyzing the 'Proxy Price' by comparing U.S. justifications with the perspectives of local leaders or citizens in the Global South.

Exemplary
4 Points

Skillfully contrasts opposing viewpoints (e.g., U.S. vs. local leader) to reveal deep sociopolitical consequences; shows exceptional empathy and critical insight into 'collateral damage.'

Proficient
3 Points

Compares the points of view of two or more authors/sources regarding intervention; identifies how different details are emphasized by each side.

Developing
2 Points

Shows partial understanding of different perspectives; presentation may favor one side or miss the internal political impact on the local nation.

Beginning
1 Points

Identifies only a single perspective or provides a superficial comparison that ignores the impact on nations in the Global South.

Category 3

Synthesis, Argumentation, & Legacy

Evaluates the student's ability to synthesize learning into a final judgment and connect historical patterns to the modern world.
Criterion 1

Synthesis & Evaluative Argumentation

Using evidence from the entire portfolio to answer the Driving Question: Necessary Defense or Problematic Overreach?

Exemplary
4 Points

Constructs a sophisticated, multifaceted argument that masterfully weighs conflicting evidence; demonstrates leadership and nuanced reasoning during the Academic Controversy.

Proficient
3 Points

Constructs a clear argument weighing necessity against costs; provides a formal essay outline citing at least four specific historical examples.

Developing
2 Points

Participates in the debate and creates an outline, but the argument may be one-sided or lack sufficient evidence to bridge 'defense' and 'overreach.'

Beginning
1 Points

Struggles to form a coherent argument; fails to cite enough evidence to support a claim regarding the legacy of Cold War policies.

Criterion 2

Historical Continuity & Modern Echoes (NCHS.Era9.2A)

Identifying the 'DNA' of 1947 policies in modern-day U.S. foreign aid and military engagement.

Exemplary
4 Points

Synthesizes complex connections between past and present; identifies subtle parallels in modern policy criticism and provides a highly persuasive 'Legacy Briefing.'

Proficient
3 Points

Clearly identifies three specific similarities between a modern policy (e.g., aid to Ukraine) and the Marshall Plan or Truman Doctrine.

Developing
2 Points

Identifies a modern policy but the connection to Cold War precedents is surface-level or historically inconsistent.

Beginning
1 Points

Fails to make a meaningful connection between historical policy and contemporary events; briefing lacks required research or modern context.

Reflection Prompts

End-of-project reflection questions to get students to think about their learning
Question 1

After examining the Truman Doctrine, the Marshall Plan, and various proxy wars, how has your answer to the Driving Question changed? Do you lean more toward these policies being a 'necessary defense' or a 'problematic overreach,' and what specific piece of evidence most influenced your view?

Text
Required
Question 2

To what extent did the 'Proxy Price' activity change your understanding of the Cold War's impact on nations in the Global South compared to your initial perspective?

Scale
Required
Question 3

Which part of the Cold War strategy was the most difficult for you to evaluate objectively, and why?

Multiple choice
Required
Options
Distinguishing between humanitarian aid and strategic political interests.
Evaluating the validity of the 'Domino Theory' versus regional complexities.
Balancing the perspectives of U.S. officials with those of local leaders in proxy states.
Connecting 1940s precedents to modern-day foreign policy decisions.
Question 4

In your 'Modern Policy Briefing,' you found traces of the Truman Doctrine or Marshall Plan in today's world. Based on your research, what is one 'cautionary tale' from the Cold War that you believe current world leaders should keep in mind when providing foreign or military aid?

Text
Required
Question 5

How effective was the process of arguing both sides of the 'Great Cold War Trial' in helping you reach a more nuanced consensus about America's global legacy?

Scale
Required