You should read and take notes of the chapter in the E-Text, then read the Lesson, then do the assignment.
Etext Chapters: 17 (p. 533-end), 18, 19, 20, 21, 22
1920s - Innovations in Communication and Technology
1920s - Cultural and Political Controversies Part 1
1920s - Cultural and Political Controversies Part 2
World War I - Military and Diplomacy Part 1
World War I - Military and Diplomacy Part 2
World War I - Home Front Part 1
World War I - Home Front Part 2
World War II - Mobilization Part 1
World War II - Mobilization Part 2
World War II - Military Part 1