[Blindmath] graphing inequalities
Bente Casile
bente at casilenc.com
Mon Nov 4 23:13:20 UTC 2013
Maureen,
If the student can provide the teacher with the x and y intercept of each
line and tell whether the line is dotted or solid the teacher will know that
the lines have been graphed properly. As far as what the student is doing I
like the wiki stick idea. What the student can tell the teacher is I am
shading the area above the line y > x and the area below y < -x+3 for
example and the teacher will know that the student is shading the correct
areas. The student and teacher both know that the intersection of the
shadings are all possible solutions. That way if the photo does not work
the teacher has the written solution to go by. The student could add more
details about the intersection area but I think you get the point.
Bente J. Casile
-----Original Message-----
From: Blindmath [mailto:blindmath-bounces at nfbnet.org] On Behalf Of Lewicki,
Maureen
Sent: Monday, November 04, 2013 3:50 PM
To: 'Blind Math list for those interested in mathematics'
Subject: [Blindmath] graphing inequalities
I Have a student who is going to have to graph inequalities. I am thinking
the best approach is to have her graph them using the APH graphic aid, push
pins for dotted lines, rubber bands for solid lines, and I am thinking that
to for the student to show the areas, I can have her use Wiki sticks in one
direction for one equation and wiki sticks in another direction for the
other.
In terms of her handing in this work I have been showing her how to
photograph the graph, but this is not so fail safe. The graph is usually too
far away for the teacher to see the details, and the student has no idea if
the photo will make sense.
Any suggestions? No calculators permitted at this point. The second part of
this issue is convincing the classroom teacher that it will work!
Maureen Murphy Lewicki
Maureen Murphy Lewicki
Teacher of Visually Impaired
Bethlehem Central School
332 Kenwood AvenueDelmar, NY 12054
http://bethlehemschools.org<http://bethlehemschools.org/>
(518) 439-7460
Fax (518) 475-0092
"The real problem of blindness is not the loss of eyesight. The real
problem is the misunderstanding and lack of education that exists. If a
blind person has the proper training and opportunity, blindness can be
reduced to a mere physical nuisance."Kenneth Jernigan
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