US National Archives
Nara: Powers of Persuasion: United We Win
In spite of racial discrimination and segregation in the military and in civilian life, the overwhelming majority of black Americans participated wholeheartedly in the fight against the Axis powers. This site explores the posters,...
Texas Instruments
Texas Instruments: Above and Beyond
In this Computer Algebra System (CAS) activity, students create a general solution for calculating the ratio of the areas above and below a curve.