Primary
George Washington University

National Security Administration: Cuban Missile Crisis

For Students 9th - 10th
This is from the National Security Administration's Website. It has information on the operations involved in the Cuban Missile Crisis. Difficult for an Elementary student to understand, but a great resource for Elementary teachers.
Website
Oswego City School District

Regents Exam Prep Center: Communism

For Students 9th - 10th
This site explains the history of communism throughout the world. Looks at the principles of Marxism and communism, Karl Marx, and major communist political victories around the world.