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Learning To See - College Papers

Learning To See

Angels on a Pin

by Alexander Calandra

1. Some time ago. I received a call from a colleague who asked if I would be the referee on the grading of an examination question. He was about to give a student a zero for his answer to a physical question, while the student claimed he should receive a perfect score and would if the system were not set up against the student. The instructor and the student agreed to submit this to an impartial arbiter and I was selected.

2. I went to my colleague's office and read the examination question. "Show how it is possible to determine the height of a tall building with the aid of a barometer."

3. The student had answered: "Take the barometer to ...

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in physics, but the answer did not confirm this. I suggested that the student have another try at answering the question. I was not surprised that my colleague agreed, but I was surprised that the student did.

5. I gave the student six minutes to answer the question, with the warning that his answer should show some knowledge of physics. At the end of five minutes, he had not written anything. I asked if he wished to give up, but he said no. He had many answers to this problem; he was just thinking of the best one. I excused myself for interrupting him, and asked him to please go on. In the next minute, he dashed off his answer which read:

6. "Take the barometer to the top of the building and lean over the the edge of the roof. Drop the barometer, timing its fall with a stopwatch. Then, using the formula , calculate the height of the building."

7. At this point, I asked my colleague if he would give up. He conceded, and I gave the student almost full credit.

8. In ...

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PAPER DETAILS

Added: 10/2/2012 11:47:24 PM
Submitted By: reading2012
Category: Education
Type: Premium Paper
Words: 821
Pages: 3

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