This engaging, ready-to-teach lesson explores how the United States expanded politically, territorially, and economically from the late 18th to early 19th century. Perfect for high school U.S. History or AICE classes, the resource combines clear content delivery, interactive elements, and built-in writing practice. Includes: ✅ Editable PowerPoint covering major events: U.S. Constitution Louisiana Purchase War of 1812 Florida Acquisition (1819) Economic Expansion + Market Revolution Henry Clay’s