[duxuser] Re: nemeth question - subtracting negative numbers
- From: Katie.Culbertson@xxxxxxxxxxxxxxx
- To: duxuser@xxxxxxxxxxxxx
- Date: Wed, 5 Dec 2007 15:04:21 -0500
Anthony-
Thanks. Yes, I knew I couldn't drop one for the reasons you described.
It's been a couple of years since I've had a braille student at this level
of math so I can't remember the technically correct way to do it
(following the Nemeth rules). But I was going to go ahead and braille it
the way you mentioned and the research further when I get back to my main
office.
Thanks for your reply.
Katie Culbertson
Teacher of the Visually Impaired
Certified Orientation and Mobility Specialist
West Central Joint Services
227-8542 WCJS
243-5510 WCJS Fax
227-4894 Robey
243-5714 Robey Fax
"Anthony Tibbs" <anthony-list@xxxxxxxx>
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12/05/2007 02:45 PM
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[duxuser] Re: nemeth question - subtracting negative numbers
Hi Katie,
The person who indicated that you use only one subtraction symbol mustn't
have realized that doing that would change the nature of the question.
Mathetmatically speaking,
7 - -1 = ?
is the same as
7 + 1 = ?
You cannot "drop" one of the subtraction symbols, because it would change
the nature of the question. Instead, you would probably be best to
Braille it as
7 - (-1) = ?
... keeping both negative signs but putting the negative one in brackets.
This is coming from someone who used Nemeth throughout high school and
first-year university courses, but who has no official 'transcribers'
training or anything of the sort. I do know, however, that you can't just
"drop" a negative sign in the Braille and retain the same meaning!
Take care,
Anthony
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