With one package containing twenty-one discussion templates topically ranging over a typical U.S. History course, student to student interaction and excitement guaranteed. Moderately priced so as to encourage as wide a distribution within the middle to high school social studies/history teacher community. The individual products available elsewhere here, but offered as a package for $25.00. As they say, if sold separately costs would be considerably higher. U.S. History units covered include, The American Revolution, Underground Railroad, Nez Perce Removal, Civil War, Immigration, Rise of Organized Labor, New Deal, U.S. Constitution, Great Depression,McCarthyism, President Truman's Decision to Drop the Bomb.