Interactive
Annenberg Foundation

Annenberg Classroom: Treaty Making Authority

For Students 9th - 10th
Check out this interactive timeline on treating-making authority in the United States.
Website
Digital History

Digital History: Peace

For Students 9th - 10th
Read about the peace treaty that ended the Mexican War. See that there were some who wanted to annex the whole of Mexico and were disappointed with the terms of the treaty.
Website
Other

Dmwv: The u.s. Mexican War: 1846 1848

For Students 9th - 10th
Dedicated to the memory of U.S. veterans who fought in the U.S.-Mexican War, this website provides documents, images, maps, and FAQs.
Article
Henry J. Sage

Sage American History: The Republic of Texas and the Mexican American War

For Students 9th - 10th
Article on the history of Texas framed in a discussion of Spanish colonization to help readers better understand events leading to the Mexican-American War. With bullet pointed facts and links to primary source material.
Article
Texas State Historical Association

Texas State Historical Association: The Frontier Forts of Texas

For Students 4th - 8th
The system of frontier forts in Texas was established to protect Anglo settlers as well as those moving on westward. This article details the observations of Lt. Col. William Grigsby Freeman, who set out in 1853 to inspect a series of...
Website
Gilder Lehrman Institute of American History

Gilder Lehrman Institute: History by Era: The Age of Jackson

For Students 9th - 10th
[Free Registration/Login Required] Read about the growth of the United States in population, economy, territory during the Age of Jackson. Named after the dynamic president, Andrew Jackson, the age encompassed much more than Jackson's...
Handout
US Army Center

U.s. Army Center of Military History: The Mexican War and After

For Students 9th - 10th
This site from the U.S. Army's Center of Military History offers a detailed account of the Mexican War and its important battles as well as a description of what occurred after the war.
Website
Texas State Library and Archives Commission

Texas State Library and Archives Commission: Hard Road to Texas 1836 1845: Aftermath the Reckoning

For Students 9th - 10th
What happened in the 15 years that followed the annexation of Texas? How did the Mexican War end? Read this article to learn about the aftermath of the annexation, and check out primary documents--a "moral map" of the United States and a...
Handout
Other

Texas Independence: Timeline of Independence [Pdf]

For Students 9th - 10th
Beginning with 1821, take a chronological walk through the Texas' road to Independence ending in 1848 with the annexation of Texas by the United States.
Article
Other

Gadsden Purchase: Odd Land Deal

For Students 9th - 10th
An informal description of the Gadsden Purchase land deal. Details about the personalities and rationale for this agreement.
Website
Library of Congress

Loc: America's Story: Westward Expansion and Reform

For Students 3rd - 8th
Part of a longer time line describing the history of the American West, this section covers the period 1829 to 1859 with hyperlinks to stories and people of this time period.
Handout
Museum of the City of San Francisco

Virtual Museum of the City of San Francisco: Gold Rush Chronology 1846 1849

For Students 9th - 10th
A nice timeline of events that occurred from 1846 to 1849 in the California Gold Rush. Hyperlinks to additional information. From the Virtual Museum of the City of San Francisco.
Handout
Khan Academy

Khan Academy: Ap Us History: 1865 1898: Chinese Immigrants and Mexican Americans

For Students 9th - 10th
Discusses the conflict with Mexican American and Chinese groups as white settlers pushed westward in the nineteenth century. Explains what brought so many Chinese immigrants to America and the roadblocks and discrimination that they had...
Website
Oklahoma State University

Chronicles of Oklahoma: A Brief History of the Fort Sill Apache Tribe [Pdf]

For Students 9th - 10th
A comprehensive description of the tribe which came from Warm Spring Apache Tribe, the Chiricahua Apache Tribe, and the Nednai Apache Tribe. The article provides details on these three tribes.
Primary
Museum of the City of San Francisco

The Virtual Museum of the City of San Francisco: The Mexican American War

For Students 9th - 10th
The Virtual Museum of the City of San Francisco displays the history of the Mexican-American War, including an explanation of border changes in the California and Mexico areas. It also discusses the idea of Manifest Destiny.
Article
Khan Academy

Khan Academy: Richard Caton Woodville, War News From Mexico

For Students 9th - 10th
Richard Caton Woodville's "War News From Mexico" is an example of an American genre painting. It depicts a group of people reacting to news about the Mexican-American War. View pictures of this painting and read the backstory in this essay.
Article
Siteseen

Siteseen: American Historama: Gadsden Purchase

For Students 9th - 10th
Provides an overview and detailed facts about the Gadsden Purchase, the land acquisition from Mexico of 30,000 sq. miles in Arizona and New Mexico for $10 million dollars.
Graphic
Curated OER

Educational Technology Clearinghouse: Maps Etc: Nevada, 1903

For Students 9th - 10th
A map from 1903 of Nevada showing counties and county seats, principal cities and towns, mountain ranges, and rivers. "Nevada, one of the most western of the States of the American Union, was formed from a portion of the territory...
Graphic
Curated OER

Educational Technology Clearinghouse: Maps Etc: Mexico and Texas, 1845 1848

For Students 9th - 10th
A map of Mexico and Texas from the annexation of the Republic of Texas by the United States (1845) to the end of the Mexican-American War (1848). The map is color-coded to show the territory of Texas in 1845, the territory of dispute...
Lesson Plan
Smithsonian Institution

Smithsonian Learning Lab: The Expansion of the United States, 1846 48

For Teachers 3rd - 8th
This online lesson plan shows students through primary sources how the borders of the U.S. changed in just a few years. They are asked to analyze maps and use map skills. All maps and worksheets are included as well as additional resources.
Graphic
Curated OER

President James L. Polk

For Students 9th - 10th
The Virtual Museum of the City of San Francisco displays the history of the Mexican-American War, including an explanation of border changes in the California and Mexico areas. It also discusses the idea of Manifest Destiny.
Graphic
Curated OER

Lithograph of General Santa Anna

For Students 9th - 10th
Image of General Santa Anna