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From: sher@rochester.UUCP (David Sher)
Newsgroups: net.cog-eng
Subject: Re: dyslexia (really handedness)
Message-ID: <13245@rochester.UUCP>
Date: Sun, 17-Nov-85 23:59:41 EST
Article-I.D.: rocheste.13245
Posted: Sun Nov 17 23:59:41 1985
Date-Received: Thu, 21-Nov-85 07:37:36 EST
References: <2246@iddic.UUCP> <481@cxsea.UUCP> <3508@utah-cs.UUCP> <703@osu-eddie.UUCP> <2348@flame.warwick.UUCP> <801@osu-eddie.UUCP>
Reply-To: sher@rochester.UUCP (David Sher)
Organization: U. of Rochester, CS Dept.
Lines: 19
Keywords: handedness

I think people would be enlightened by a "discovery" by my father who
teaches math at a community college.  One of the subjects he teaches is
"Nursing Math" whatever that may be.  Many of the transformations done by
nurses to calculate centigrade to Farenheight and so on are done by lining
up two charts.  If one chart is put down backwards chaos obviously results.
He found that mixing up left and right caused many people to screw up 
and get confused in this proceedure.  To combat this he now draws all his
charts going up and down not side to side.  He found that just about no one
gets up and down confused.  (There is probably a substantial evolutionary
advantage to knowing which way is up. :-)  As a side note I myself can
only tell right from left by remembering that my right hand is much
stronger and tensing my biceps (at least that is the technique I developed
as a child).  I am also very good at crashing user interfaces, especially
text editors!  
-David
-- 
-David Sher
sher@rochester
seismo!rochester!sher