Causes of World War I

Free to teach as-is — the teacher guide, student handout, and slides are included.

Free — we'll email you an access link. Google Docs format.

Objective

I can explain how militarism, alliances, imperialism, and nationalism contributed to the outbreak of World War One.

Part 1 of 3

Warm-up video

Heimler's History · 6:20Vetted channel

We don't generate video — this one is by Heimler's History on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

7 questions

1

Define militarism and explain how it contributed to the tensions leading up to World War One.

2

Explain the purpose of alliances in the early 20th century and how they escalated the conflict after the assassination of Archduke Franz Ferdinand.

Part 3 of 3

Exit ticket

Quick comprehension check

Explain how the build-up of militaries in Europe, specifically between Britain and Germany, contributed to the outbreak of World War One. Describe how the alliance system in Europe transformed a regional conflict (between Austria-Hungary and Serbia) into a larger war involving multiple nations. Explain how competition for colonies (imperialism) created tension and rivalries between European powers, contributing to the outbreak of World War One.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

  • Slides

    Ready to present

We'll ask for your email to send your access link — nothing else.

Teaching a group at a different level?

Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.

Adapt This Lesson