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I may have missed this before but could you cite the research that you
refer to?
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Robert A. Cohen, Department of Physics, East Stroudsburg University
570.422.3428 rcohen@po-box.esu.edu http://www.esu.edu/~bbq
-----Original Message-----_______________________________________________
From: John Clement
Sent: Friday, May 26, 2006 3:06 PM
Part of the problem is the introduction of factor/label
before students have learned what unit conversion means.
There is research evidence that factor/label prevents
understanding. It is also often not the most efficient way
of doing conversions, especially when only 1 step is required.
Factor label becomes just another incomprehensible procedure
for way too many students.
John M. Clement
Houston, TX
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l