PBS.SCHOOL: The Story of American Public Education: Evolving Classroom.

http://www.pbs.org/kcet/publicschool/evolving_classroom/index.html

This website accompanies a four-part television series on the history of America's education system from colonial times to the present. The website offers excellent resources, including photographs that illustrate important moments of education history, a chronological timeline of key political events, brief biographies of educational innovators, and a curriculum guide available for download.

Referenced in:
"The Surest Foundation of Happiness": Education in Pennsylvania
One-Room Schoolhouse in Pennsylvania