Harvard Project Physics

Harvard Project Physics, later renamed the Project Physics Course, was a humanistic, historically oriented high school physics curriculum developed by Gerald Holton (Harvard University), Fletcher G. Watson (Harvard Graduate School of Education), and F. James Rutherford (New York University). The course was developed in response to a National Science Foundation call for improved physics curricula following the USSR's success in the Sputnik mission. In addition to a textbook, the Project Physics catalog offered films and laboratory and calculating equipment, including inexpensive plastic slide charts.

For more information on Project Physics, see Gerald Holton, "The Project Physics Course: Then and Now," Science & Education 12 (2003): 779-786.
Available online here.

An extensive repository, including the books, guides and additional material is available at the Internet Archive, "The Project Physics Collection", here.