[Blindmath] graphics: need help

[Louis Maher]

Hello,

I always liked the drawing kit which consists of a clipboard with a rubber
back.  If you draw on a piece of paper with a ball-point pin held at about
45 degrees, you will produce a touchable line.  The line will be on the same
side of the paper that you are.  This kit is sold with plastic sheets;
however, plain paper works as well.  I believe APH sells this kit for around
$20.  You can rapidly produce graphics, and it is ideal for classroom
situations.


Regards
Louis Maher
713-444-7838
ljmaher at swbell.net
http://www.nfb-texas.org/houston.htm


-----Original Message-----
From: blindmath-bounces at nfbnet.org [mailto:blindmath-bounces at nfbnet.org] On
Behalf Of Maureen Lewicki
Sent: Friday, April 15, 2011 8:01 AM
To: blindmath at nfbnet.org
Subject: [Blindmath] graphics: need help

Good day! I am a teacher of the visually impaired, with a fourth grade
braille student. We have been doing introductory geometry, such as labeling
isoseles triangles, right triangles, polygons, etc.

The graphics are being produced by computer, by an aide who is really adept
with computers, and if she doesn't know how to do something, she'll figure
it out.

She has produced some impressive geometry graphics! We have also had to
'tweak' quite a bit, such as with, for example a graphic of a ray. The
student could not, understandably, detect the arrow at the end if it was the
same thickness as the line, so the transcriber draws the line, then at the
end, a very thin line with an arrow. 

Finally, to the question: Some of the graphics remain difficult for the
child. During a recent test, I ended up constructing the diagrams on the
Graphic Aid for Mathematics and the draftsman tactile drawing board by
APH,(my preferred) which were more understandable to her. Can anyone suggest
ways to produce really crisp, clear figures? We will soon be measuring
circles, and angle within the circles, etc, so I want to try to produce the
best for the child, without frustrating the transcriber. Thank you!M


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