Other
Monterey County Historical Society: Treaty of Guadalupe Hidalgo
Read the Treaty of Guadalupe Hidalgo, which ended the Mexican War.
OpenStax
Open Stax: The Mexican American War, 1846 1848
After reading this section of a chapter on "Westward Expansion," students will be able to identify the causes of the Mexican-American War and describe the outcomes of the war in 1848 and the effect of the California Gold Rush on westward...
OpenStax
Open Stax: The Compromise of 1850
From a chapter on " Troubled Times: the Tumultuous 1850s," this section explains the contested issues that led to the Compromise of 1850 and describes and analyzes the reactions to the 1850 Fugitive Slave Act.
US Department of State
Bureau of International Information Programs: History Outline: Sectionalism
Article reviews several conditions of American society that sowed the seeds of civil war, particularly slavery and sectional conflict.
iCivics
I Civics: A Growing Nation
In this unit, students learn how the United States began to grow as soon as it became a nation, and they examine the effect of this growth on societies already established in North America. Register for a free account to download teacher...
Digital History
Digital History: The Political Crisis of the 1840s
Read about the attempt to keep slavery out of the newly acquired Mexican Cession, and so how this attempt revealed an increased split between North and South.
Curated OER
National Park Service: Fort Scott National Historic Site: The Mexican War
This is a very brief overview of the Mexican War, organized into the following sections: "Zachary Taylor's Army," "The Army of the West," and "Invasion of Mexico City." Includes links to related articles and websites.
Tom Richey
Tom richey.net: The Mexican War and the Compromise of 1850 [Ppt]
Presents key ideas for examining America's involvement in the Mexican War, westward expansion and the concept of Manifest Destiny, the Compromise of 1850, and the individuals involved in these issues.
Annenberg Foundation
Annenberg Learner: United States History Map: The Nation Expands
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.
Annenberg Foundation
Annenberg Learner: The Nation Expands: Mexican Cession, 1848
See a map of the land acquired by the United States as a result of the Treaty of Guadalupe Hidalgo, called the Mexican Cession. From Annenberg Media.
Library of Congress
Loc: America's Story: The Treaty of Guadalupe Hidalgo
This 3-page article provides a general overview of the Mexican War which resulted in the signing of the Treaty of Guadalupe Hidalgo in Mexico City on February 2, 1848.
San Jacinto Museum of History
San Jacinto Museum: How Did the Battle of San Jacinto Change the World?
This is an interesting look at the impact of the Battle of San Jacinto not only for the Republic of Texas, but for places in North America and in Europe. Links to additional information.
University of Oregon
Mapping History Project: Mexican Cession: Political Boundaries
Click on this map to see the boundaries of Mexico, Texas, and the United States before the Mexican Cession, and then click again to see the land ceded to the U.S. after the Treaty of Guadalupe Hidalgo. Be sure to click to see the key...
Khan Academy
Khan Academy: The Compromise of 1850
This Khan Academy resource provides a table of contents with notes for The Compromise of 1850.
Encyclopedia Britannica
Encyclopedia Britannica: Treaty of Guadalupe Hidalgo
Encyclopedia Britannica provides a brief overview of the results of the treaty that ended the Mexican War.
iCivics
I Civics: Mexican Cession (1848)
Students explore the causes and effects of the Mexican-American war. They will learn about the land was obtained as a result, the Treaty of Guadalupe Hidalgo, the Gadsen Purchase of 1853, and the new international borders.
ClassFlow
Class Flow: The Debate Over Slavery
[Free Registration/Login Required] This flipchart contains information about the renewed debate over the spread of slavery after the Mexican War. It describes the Wilmot Proviso, popular sovereignty, the Compromise of 1850, the Fugitive...
Curated OER
Perry Castaneda Map Collection: Admission of States and Territorial Acquisitions
Here's a map to show you when states were added to the Union. It also shows territories and when they were acquired.