Lesson 2: United States Entry into World War I: Some Hypotheses About U.S. Entry

Share with the class the handout “Why Did the United States Enter World War I?” on pages 1-2 of the Master PDF. For convenience, the document is transcribed below. Discuss the various hypotheses listed below and in the PDFs with supporting documentation. See if class members have any other hypotheses, including combinations of two or more listed on the handout. Then, based on what students know at this point, take a poll. Which hypothesis does each student support?

Guiding Questions

What is the most compelling evidence explaining why the U.S. entered World War I?

Learning Objectives

Take a stand on a hypothesis for U.S. entry into World War I, supported by specific evidence.