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From: edwards@dogie.edu ( Mark Edwards)
Newsgroups: comp.ai,comp.edu,comp.cog-eng
Subject: Re: Becoming CAI literate
Message-ID: <48@dogie.edu>
Date: 25 Feb 88 18:18:46 GMT
References: <3319@watcgl.waterloo.edu> <4668@ecsvax.UUCP>
Reply-To: edwards@dogie.macc.wisc.edu ( Mark Edwards)
Organization: UW-Madison Academic Computer Center
Lines: 29

In article <4668@ecsvax.UUCP> hes@ecsvax.UUCP (Henry Schaffer) writes:
:
:  There may be a new skill being developed - one which I find difficult.
:This is the ability to judge a time span from a glance or two at the face
:of the wristwatch or clock.  I can just glance at my watch and tell about
:how much time I have left until the end of lunch hour/the lecture/whatever.
:That is, I can do this unless the watch is one of the digital types.  (And
:it gets really bad when the period does not end on an even hour.)
:
:  Maybe our children will develop wonderful arithmetical skill from 
:trying to tell if they are late for their favorite TV program?  :-)
:(This might take care of addition/subtraction - now what about 
:multiplication/division?)


  I agree, but until know I thought it was just my opinion. I find it 
  more difficult to use a digital watch. There is a base conversion 
  (base 60??) that must be done with a digital watch. While the 
  analog version is more like an icon. Perhaps there is no math
  done at all. The position of the hands are roughly equivalent to
  numbers, so I don't calculate anything. Maybe numbers are just too
  abstract and do not really register. While my memory for pictures
  is more meaningful.


 mark
 
-- 
    edwards@vms.macc.wisc.edu
    UW-Madison, 1210 West Dayton St., Madison WI 53706