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According to Siegler's model of strategy choice, if Manuel is given the same problems over a short time interval, he may, in fact,
Washington, DC
The capital city of the United States, known for housing the federal government's three branches.
Referent
A referent is a specific entity or object that a term or symbol refers to in the real world, anchoring language to concrete or abstract things.
U.S. Presidents
Individuals who have held the office of the President of the United States, the head of state and government in the U.S.
American Civil War Soldiers
Individuals who served in the military forces of the Union or the Confederacy during the American Civil War from 1861 to 1865.
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