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Ludwik,
You shouldn't be surprised at these results. You asked the second question
backwards. Had you asked, 'Write down the Sine of 30 degrees', you might
have gotten more correct answers. :-)
If anyone thinks this is not a factor in student performance, try giving
reverse definitions {give tithe definition and the students give you the
word or term which the definition describes--well some do!}
Rick
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Richard W. Tarara
Professor of Physics
Saint Mary's College
Notre Dame, IN 46556
rtarara@saintmarys.edu
FREE PHYSICS INSTRUCTIONAL SOFTWARE
www.saintmarys.edu/~rtarara/
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----- Original Message -----
From: "Ludwik Kowalski" <kowalskiL@MAIL.MONTCLAIR.EDU>
To: <PHYS-L@lists.nau.edu>
Sent: Wednesday, September 05, 2001 2:47 PM
Subject: A short survey.
Then I turned toward the class and said "Use a piece of scrap
paper and a pencil, but not a calculator, and answer the
following question. What is the angle whose sine is 1/2?
You have two minutes."
After two minutes I said "The correct answer is 30 degrees.
I want to know how many of you got the correct answer."
I turned my head toward the blackboard again and said: "raise
your hand if your answer was correct." Only 11 hands were
raised.