[Blindmath] graphing inequalities

Fri Nov 8 15:27:59 UTC 2013

I'm wondering from a design perspective if creating a grooved or gridded under mat would help with student graphing.  As a teacher I made stencils out of old Braille book covers so I could quickly create 1-4 axis on the fly in classes.

I'm imagining a very low hight bump grid with a depression for an axis.

Sean Richards Tikkun

Sent from my iPod

> On Nov 7, 2013, at 10:57 PM, Susan Osterhaus <osterhauss at tsbvi.edu> wrote:
> 
> Thanks for looking into this Li.
> Susan
> 
> -----Original Message-----
> From: Blindmath [mailto:blindmath-bounces at nfbnet.org] On Behalf Of Li Zhou
> Sent: Thursday, November 07, 2013 9:55 PM
> To: Blind Math list for those interested in mathematics
> Cc: ljmaher
> Subject: Re: [Blindmath] graphing inequalities
> 
> I've asked some of my colleagues in my research department and it seems to
> be not easy to add raised grid lines on films. But I'm going to ask some
> people in the production side as well. It's just my thought that cost may
> be a key issue here.
> 
> Yes, we now know this and will do our best to help.
> 
> Li
> 
>> On 11/7/13, Susan Osterhaus <osterhauss at tsbvi.edu> wrote:
>> Li works for APH. So, I think he was asking if there was any interest
>> in having the Draftsman film come in a gridded format. The film is not
>> expensive if your student is eligible for federal quota money. Li,
>> would it be possible to get the Draftsman film in gridded format?
>> 
>> Susan
>> 
>> -----Original Message-----
>> From: Blindmath [mailto:blindmath-bounces at nfbnet.org] On Behalf Of
>> Louis Maher
>> Sent: Tuesday, November 05, 2013 5:19 PM
>> To: 'Blind Math list for those interested in mathematics'
>> Subject: Re: [Blindmath] graphing inequalities
>> 
>> 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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