[Blindmath] graphing inequalities

Sean Tikkun jaquis at mac.com
Wed Nov 6 17:39:23 UTC 2013 

In my work as a TVI we produced a grid with axis.  I then had my student locate intercepts and press the grid down I those intersections so he could find them.  He would then place a ruler or straight edge on the two depressions and draw the appropriate line (solid or dashed). Then without removing the ruler would use it as a guide to 'shade' the region.  

The dilemma with this mood is that the student is purely learning how to 'produce' a product useful for the sighted.  Which is anti-thetical to all graphing for learning math.  The graph is meant to be a tool for interpretation and connection.  Since the answer is a region a table or list of data points isn't very useful either.  

A puff pun would at least make something more useful.  If the student were particularly savvy they could pin or stylus the points and then do the shading and drawing of the line by flipping the paper and using the reference marks.  But again we are creating a lot more work than the sighted peer to create a tool that is less useful.

In the light side most sighted kids perform poorly in the concept area of hush is task.  At least in my experience as a math teacher...

Your Friend,
Sean R. Tikkun
Website: www.seantikkun.net
E-mail: jaquis at me.com

Sent from my iPad

> On Nov 5, 2013, at 9:02 PM, Kelly <kellyvision at sbcglobal.net> wrote:
> 
> I use these graph sheet from aph
> NEW! Embossed XY Axis 20x20 Grid Graph Sheets
> 1-04045-00 -- $5.45
> 
> my favorite. 
> K
> 
> www.epsilen.com/kellymarts
> 
>> On Nov 5, 2013, at 10:05 AM, Rosanne Hoffmann <rhoffmann at aph.org> wrote:
>> 
>> APH sells embossed graphing paper in various grid sizes:
>> 
>> http://shop.aph.org/webapp/wcs/stores/servlet/Product_Embossed%20Graph%20Sheets:%2011.5%20x%2011%20Inches_3014304P_10001_11051
>> 
>> and bold line tactile graph sheets;
>> 
>> https://shop.aph.org/webapp/wcs/stores/servlet/ProductDisplay?storeId=10001&catalogId=11051&krypto=w%2FE%2FZ6s4BbPhdCMGO1HV%2FD59SBupFiG%2B2sk%2BDsSg6XmlOicMwQC94mxMVMN%2BxiogRuLhePI2jbev%0D%0AhWynm7QSyMfiO2J9G4P0KQaM3CVhP%2FM%3D&ddkey=http:ProductDisplay
>> 
>> 
>> 
>> 
>> Rosanne Hoffmann, PhD
>> STEM Project Leader
>> APH
>> 502-899-2292
>> rhoffmann at aph.org
>> 
>> 
>> 
>> 
>> -----Original Message-----
>> From: Blindmath [mailto:blindmath-bounces at nfbnet.org] On Behalf Of Li Zhou
>> Sent: Tuesday, November 05, 2013 10:59 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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>> 
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