[Blindmath] graphing inequalities

Louis Maher ljmaher at swbell.net
Tue Nov 5 23:19:00 UTC 2013


Li,

Forget the plastic film.  It does not come with gridlines, and the plastic
is expensive.

Use plain paper.

Regards
Louis Maher
713-444-7838
ljmaher at swbell.net


-----Original Message-----
From: Blindmath [mailto:blindmath-bounces at nfbnet.org] On Behalf Of Li Zhou
Sent: Tuesday, November 05, 2013 9:59 AM
To: ljmaher at swbell.net; Blind Math list for those interested in mathematics
Subject: Re: [Blindmath] graphing inequalities

If the plastic films/paper used with Draftsman come in with raised grid
lines, with that help?

Thanks,

Li

On 11/4/13, Louis Maher <ljmaher at swbell.net> wrote:
> Maureen,
>
> The graph paper would not work for the student because the student 
> cannot feel the graph paper, unless you sketched a few of the lines in 
> the graph paper grid.
>
> In this case, you need only show the concept of the graph.  You do not 
> have to have accuracy, just the general shape.
>
>
>
> Regards
> Louis Maher
> 713-444-7838
> ljmaher at swbell.net
>
>
> -----Original Message-----
> From: Blindmath [mailto:blindmath-bounces at nfbnet.org] On Behalf Of 
> Lewicki, Maureen
> Sent: Monday, November 04, 2013 6:19 PM
> To: <ljmaher at swbell.net>; Blind Math list for those interested in 
> mathematics
> Subject: Re: [Blindmath] graphing inequalities
>
> Thanks Louis, isn't that similar to the mat that APH puts out on which 
> you can put plastic paper?
>
> If i put raised line graph paper on the sensational blackboard will 
> that work? The student has to be able to use the graph paper as a 
> reference point
>
> Maureen Lewicki
> Teacher of the Visually Impaired
> Bethlehem Central Schools
> 700 Delaware Avenue
> Delmar, NY 12054
> http://bcsd.k12.ny.us/
>
>
> On Nov 4, 2013, at 6:20 PM, "Louis Maher"
> <ljmaher at swbell.net<mailto:ljmaher at swbell.net>> wrote:
>
> Maureen,
>
> You should  consider the "sensational Blackboard" available at 
> http://sensationalbooks.com/.
> With this $30 item, a blind or sighted person can rapidly sketch a 
> graph using a ball-point pin and a plane piece of paper, and the blind 
> individual can feel the graph, and a sighted person can see the graph.
>
> Regards
> Louis Maher
> 713-444-7838
> ljmaher at swbell.net<mailto:ljmaher at swbell.net>
>
>
> -----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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