AP U.S. History 9.5: Immigration & Migration in the Modern Era Lesson Bundle Help your students explore how immigration and internal migration have shaped modern American society with this engaging, ready-to-use lesson aligned to AP U.S. History Topic 9.5. This resource examines demographic shifts, policy debates, and the cultural impact of migration in the late 20th and early 21st centuries. Designed to support AP-level thinking, this lesson encourages students to analyze cause and effect, co