Saturday, July 14, 2007

How to measure the height of a building with a barometer.

There are many correct ways to answer a test question

R.L. Loeffelbein, a physics teacher at Washington University in St. Louis was about to give a student a zero for the student's answer to an examination problem. The student claimed he should receive a perfect score, if the system were not so set up against the student. Instructor and student agreed to submit to an impartial arbiter, Dr. Alexander Calandra, who tells the story.

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