[blindkid] Graphing parabolas

[Sherry DeFrancesco]

Hi List,

I am thinking about the use of clay, play dough or weather stripping to form 
whatever tactile lines/curves you are trying to accomplish...

Not sure if this would be helpful, but thought it was worth mentioning.

Sherry

----- Original Message ----- 
From: "Richard Holloway" <rholloway at gopbc.org>
To: "NFBnet Blind Kid Mailing List, (for parents of blind children)" 
<blindkid at nfbnet.org>
Sent: Wednesday, November 11, 2009 3:36 PM
Subject: Re: [blindkid] Graphing parabolas


> This isn't exactly what you're asking for, but I recall a school  project 
> where we used a pair of X / Y  axes on heavy stock and we  sewed in 
> overlapping line segments (with yarn) at appropriate  coordinates to see 
> how it would actually generate a curve. Especially  with the thick yarn, I 
> was amazed at how quickly a few stitches began  to generate what seemed to 
> be a smooth curve. Depending on exactly  what you're trying to produce, I 
> wonder if there is something similar  that might be adapted.
>
> Richard
>
>
> On Nov 11, 2009, at 2:30 PM, Barbara.Mathews at sce.com wrote:
>
>>      We're looking for suggestions on techniques a blind student can  use
>> to graph parabolas on tactile graph paper.  Any ideas would be
>> apppreciated!
>>
>>
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