Explore the motivations for the Louisiana Purchase, as well as the terms of the purchase and its consequences. In this interactive lesson from WGBH, students develop a written argument in response to the question "Do you agree that the...

Click on the sliding bar and watch how the United States territory grew with the Louisiana Purchase, Florida Acquisitions, Texas Annexation, Oregon Country, and Mexican Cession.

[Free Registration/Login Required] An informational text about Lewis and Clark exploring the Louisiana Purchase. A question sheet is available to help students build skills in reading comprehension.

The Smithsonian's EdGate project provides this illustrated narrative site that explores the mapping of the American West accomplished by the 1804-06 Lewis and Clark expedition.

In this four-part lesson, students study the map of the Louisiana Purchase and the trail of Lewis and Clark's Expedition. Then, build a classroom map displaying the events of the Westward Expansion.

Become a geography whiz as you learn how the United States was settled. Discover how the continent was irrevocably changed by European colonization, the events that caused the wholesale displacement and decimation of the land's original...

After examining a map showing the expansion of the United States, click to read about each addition to the country and see where that addition is. Play Expansion Concentration to test your skills.

Interactive map showing free states and territories and slave states and territories before and after the Missouri Compromise of 1820. Click on the map to choose before or after and the key. Shockwave required.

In this lesson, 5th graders learn about westward expansion and the Lewis and Clark expedition. Includes background information for the teacher. Students explore primary and secondary resource readings on the Louisiana Purchase, President...

A great map and a list of the acquisitions and border changes of the United States from 1804 to 1823. A concise resource showing Western expansion.

A base map showing the expansion of the United States resulting from the Louisiana Purchase in 1803.

A map of the United States showing the extent of the country prior to, and after the Louisiana Purchase from France in 1803.

A map of the United States and the Louisiana Territory showing boundary disputes and boundary claims between 1763 and 1809. The map shows the natural boundaries and extent of the original Louisiana Territory claimed by the French, the...

A map of the Louisiana territory purchased from France in 1803, and the boundary established with the western Spanish territory by the purchase. The map overlays the current State boundaries to show the extent of the territory.

A map of the Louisiana territory purchased from France in 1803, and the boundary established with the western Spanish territory by the purchase.

A map of the Louisiana territory purchased from France in 1803, and the boundary established with the western Spanish territory by the purchase. The map overlays the current State boundaries to show the extent of the territory.

A base map showing the extent of the United States after the purchase of the Louisiana territory from France in 1803.

A base map showing the extent of the United States prior to the purchase of the Louisiana from France in 1803.

Read a description of the terms of the Louisiana Purchase. There is a map to show the land that was included in this deal.

Here's a map to show you when states were added to the Union. It also shows territories and when they were acquired.

A map from 1899 of the United States showing the growth of the nation from the original States in 1783 to the admission of Utah into the Union in 1896. The map shows the Northwest Territory claimed at the end of the American...

A map of the United States and territories in 1821 after the Missouri Compromise, showing the Free States and territories, the Slave States and territories, and the transitional territories at the time. The map is color-coded to show the...

A map of central Mexico and southern United States showing the important cities and battle sites of the Mexican-American War (1846-1848). The map shows the rivers of the contested boundaries that led to the war, the Rio Grande del Norte...

A map of northern and central Mexico and southern United states showing the area of conflict during the Mexican-American War (1846-1848). The map shows the Mexican boundary (under Spain) established by the Louisiana Purchase (1803)...