Unit 3 - Homework; AP US History Course Reader; AP US History Secondary Source Analysis Worksheet; Review Sheet Unit 4 - The Age of Jackson. Unit 4 - Homework; Unit 4 Review Sheet; Unit 5 - Civil War and Reconstruction. Unit 5 - Homework; Degler reading on Slavery; Review Sheet; Unit 6 - The Gilded Age. Unit 6 - Homework Unit 6 - Review Sheet; Midterm Review Unit 7 - Progressive Era. Unit 7.