US History 1104: Expansion Abroad and Progressive Reform. Ten Unit Edition 2026.

The late 1800s through 1917. This student unit combines historical readings and presidential profiles by era, with lesson questions, chapter reviews, critical-thinking activities, a ten-question Unit Review, and a 25-point Unit Test.

Use with the matching 2026 Ten Unit Score Key and Test Key. The older eleven-unit keys are not compatible.