Zinn Education Project
From the site:
The Zinn Education Project promotes and supports the teaching of people’s history in classrooms across the country. Our website offers free, downloadable lessons and articles organized by theme, time period, and grade level. Based on the approach to history highlighted in Howard Zinn’s best-selling book A People’s History of the United States, our teaching materials emphasize the role of working people, women, people of color, and organized social movements in shaping history.
The teaching materials are a valuable and great start to understanding what stories in our history are untold, or under-told.