Causes of World War I

This topic demands active engagement because students often struggle to grasp how distant historical events like alliances and treaties led to global conflict. Role-playing and collaborative tasks make the abstract concrete, helping students see cause-and-effect relationships in real time rather than through passive reading.

• Grade 12
• Canadian & World Studies
• 3 activities
• 25 min–90 min

Learning Objectives

1. Analyze the interconnectedness of the alliance systems in Europe and their role in transforming a regional conflict into a global war.
2. Evaluate the impact of imperial competition and colonial ambitions on the escalating tensions between European powers prior to 1914.
3. Explain how nationalist sentiments within various European states contributed to both internal cohesion and external aggression.
4. Synthesize the long-term underlying causes (alliances, imperialism, militarism, nationalism) with the immediate trigger (assassination) to explain the outbreak of WWI.

Simulation Game

⏱ 90 min·Whole Class

Simulation Game: The Paris Peace Conference

Students represent the 'Big Three' (US, Britain, France) and other nations at the end of WWI. They must negotiate the terms of the Treaty of Versailles, balancing Wilson's 'Fourteen Points' with the European powers' desire to punish Germany.

Prepare & details

Analyze the role of alliance systems in escalating tensions leading to WWI.

Facilitation Tip: In the Think-Pair-Share, ask students to use the term 'total war' in their responses to reinforce the concept's significance.

Setup: Flexible space for group stations

Materials: Role cards with goals/resources, Game currency or tokens, Round tracker

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Inquiry Circle

⏱ 50 min·Small Groups

Inquiry Circle: The Road to WWII

Small groups are given a series of events from the 1930s (e.g., the invasion of Manchuria, the remilitarization of the Rhineland, the Munich Agreement). They must create a 'Failure of Diplomacy' timeline and explain why the League of Nations was unable to stop the slide toward war.

Prepare & details

Explain how imperial rivalries contributed to the outbreak of global conflict.

Setup: Groups at tables with access to source materials

Materials: Source material collection, Inquiry cycle worksheet, Question generation protocol, Findings presentation template

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

Think-Pair-Share

⏱ 25 min·Pairs

Think-Pair-Share: The Impact of Total War

Students are given a profile of a person during WWII (e.g., a Canadian soldier, a Japanese-Canadian internee, a worker in a munitions factory). They discuss with a partner how the concept of 'total war' impacted that person's life and rights.

Prepare & details

Evaluate the significance of the assassination of Archduke Franz Ferdinand as a trigger.

Setup: Standard classroom seating; students turn to a neighbor

Materials: Discussion prompt (projected or printed), Optional: recording sheet for pairs

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Teaching This Topic

Experienced teachers approach this topic by emphasizing continuity over time, using timelines and cause-and-consequence charts to show how unresolved issues from WWI fed into WWII. They avoid oversimplifying by separating the study of WWI’s causes from the Holocaust, then explicitly linking them through primary source analysis of Nazi propaganda and legal measures.

What to Expect

Students will demonstrate understanding by connecting specific historical events to broader causes of war and explaining how unresolved tensions from one conflict led to another. They will also articulate the deliberate nature of state-sponsored atrocities like the Holocaust using evidence from primary and secondary sources.

Watch Out for These Misconceptions

Common Misconception

During the Simulation: The Paris Peace Conference, students may assume the conference participants shared modern views on peace and reconciliation.

What to Teach Instead

Use the simulation’s debrief to highlight how participants’ personal and national interests shaped the Treaty of Versailles, directly addressing how unresolved issues led to WWII.

Common Misconception

During Collaborative Investigation: The Road to WWII, students may view the Holocaust as an unpredictable tragedy rather than a carefully planned genocide.

What to Teach Instead

Have students analyze the timeline of anti-Jewish laws and propaganda created during their investigation to identify the deliberate stages of persecution.

Assessment Ideas

Discussion Prompt

After the Simulation: The Paris Peace Conference, facilitate a class discussion where students must cite specific alliances (e.g., Triple Alliance, Triple Entente) and explain their obligations using the simulation’s outcomes as evidence.

Quick Check

During Collaborative Investigation: The Road to WWII, provide students with a short paragraph describing a specific pre-war event (e.g., Moroccan Crises, Bosnian Crisis). Ask them to identify which of the four main causes (alliances, imperialism, militarism, nationalism) it best exemplifies and briefly explain why using their graphic organizer.

Exit Ticket

After Think-Pair-Share: The Impact of Total War, have students write one sentence explaining the role of nationalism in their assigned region of Europe (e.g., Germany, France, Serbia) and one sentence explaining how imperial rivalries fueled tension between two specific European powers.

Extensions & Scaffolding

• Challenge early finishers to research and present one lesser-known treaty or crisis that contributed to tensions, explaining its role in the 'Thirty Years War' framework.
• Scaffolding: Provide sentence starters for students who struggle, such as, 'The Bosnian Crisis of 1908 increased tensions because...'
• Deeper: Assign a comparative analysis of Woodrow Wilson’s Fourteen Points and the Treaty of Versailles, evaluating which document better addressed the causes of war.

Key Vocabulary

Alliance System	A complex network of treaties and agreements between European nations, designed for mutual defense, which ultimately divided the continent into two opposing blocs.
Imperialism	The policy of extending a nation's power and influence through colonization, use of military force, or other means, leading to competition for resources and territory.
Militarism	A belief or policy that a nation should maintain a strong military capability and be prepared to use it aggressively to defend or promote national interests.
Nationalism	An intense form of patriotism and loyalty to one's nation, often characterized by a belief in national superiority and a desire for self-determination or expansion.
Balkan Powder Keg	A term referring to the Balkan Peninsula in the early 20th century, characterized by ethnic tensions, nationalist aspirations, and the interference of major European powers, making it prone to conflict.