iCivicsiCivics offers free, engaging civics content, including lesson plans and games for students to play digitally. Young people learn how government works by experiencing it. in the form of games and real-life scenarios. They step into the role of a judge, a member of Congress, a community activist, even the President of the United States - and do the job they do. Students gain civic knowledge and skills with fun and challenging learning experiences.
Gilder Lehrman Institute of American History This website includes primary sources, essays, videos, and study guides. Registration for a free teacher account is required for access. While geared toward AP U.S. History exam prep, the AP US History Study Guide page may prove useful beyond advanced placement with videos, timelines, primary sources, and essays organized by era.
National Constitution CenterIn addition to the interactive Constitution tool, they host several educational resources and games including educational videos and web interactives.
Smithsonian's History ExplorerSmithsonian's History Explorer was developed by the National Museum of American History in partnership with the Verizon Foundation to offer hundreds of free, innovative online resources for teaching and learning American history. History Explorer's resources focus on learning history by "reading" objects for the stories they hold about the nation and its many peoples. Learning activities feature artifacts selected from over 3 million items in the Museum's collections, and draw on the expertise of the Museum's renowned curatorial staff.
Stanford History Education GroupThe Reading Like a Historian curriculum is free with registration and offers ready-to-go lessons on world and U.S. history based on primary source investigations. See also the Beyond the Bubble History Assessments, more than 100 tasks where students analyze one or two documents from the Library of Congress.
Women and the American StoryWomen & the American Story (WAMS) is a free curriculum website from the New-York Historical Society. WAMS connects educators with classroom resources that illuminate diverse women’s contributions to the American past. Organized into ten curricular units, two new units will be launched per year until the project is complete in 2022.