...a reminder to visit websites of President Libraries. 

Presidential Libraries can be great source for educational lessons. Check out a few suggested sites. 

Lyndon Banes Johnson: http://www.lbjlibrary.org/

Ronald Reagan: https://www.reaganfoundation.org/

George W. Bush: https://www.georgewbushlibrary.smu.edu/

William J. Clinton: https://www.clintonlibrary.gov/