Re: FW: [xmca] a minus times a plus

[Mike Cole <lchcmike@gmail.com>]

Seems like this could be done as a computer program. I think maybe Colorado
Boulder has a phet demo that, with some simplification.
might work.
thanks for the suggestion, Kathryn
mike

On Wed, Apr 29, 2009 at 6:47 AM, Chval, Kathryn B. <chvalkb@missouri.edu>wrote:

> I worked with David Page years ago. He used an idea that seemed to make
> sense to teenagers. He said, "Imagine you have two videos. In the first
> video you are running.  What do you see when you push play?  (Yes, you
> are running forward.) Now what happens when you push rewind and watch
> the tape? You are running backward.
>
> Now imagine the second video. In the second video I film you running
> backward. What do you see when you push play?  (you are running
> backward) What do you see when you push rewind and watch the tape. (you
> are running forward)."
>
> Of course, it is actually best if you have the videos and can play them.
>
>
> Kathryn Chval
>
> -----Original Message-----
> From: xmca-bounces@weber.ucsd.edu [mailto:xmca-bounces@weber.ucsd.edu]
> On Behalf Of Mike Cole
> Sent: Tuesday, April 28, 2009 10:11 PM
> To: David Kellogg
> Cc: Culture ActivityeXtended Mind
> Subject: Re: [xmca] a minus times a plus
>
> The translation from math discourse to discourse discourse will almost
> certainly help, David.
> The teen's dad was very clear about a double negative being a positive.
> "Not not caring=caring" but that understanding does not cross
> discourse.representational domains.
>
> I thought Joplin's line was "freedom's just another word for nothing
> left to
> lose."  Hard to remember
> stuff from the prior millenium.
>
> mike
>
> PS -- Hmmm, or was that something about the freedom of necessity from
> yet
> another prior millenium?
>
> PPS-- I'll give your version a try. First chance I get,
> mike
>
> On Tue, Apr 28, 2009 at 7:00 PM, David Kellogg
> <vaughndogblack@yahoo.com>wrote:
>
> >
> > Mike:
> >
> > Try the following sentences on your teenager. (Sing where possible!)
> >
> > a) It's worth it.
> > b) It's not worth it.
> > c) It's not not worth it.
> > d) It's not worth nothing.
> > e) Nothing ain't worth nothing but it's free (Kris Kristofferson
> version)
> > f) Nothing ain't worth nothing hon' if it ain't free. (Janis Joplin
> > version)
> > (Thanks to an imperfectly anonymous reviewer for MCA for straightening
> out
> > my discography for the last two examples.)
> >
> > See if he can explain WHICH sentences mean something is worth it and
> which
> > ones mean it's not worth it. Of course, this IS related to the notion
> of a
> > negative operating on a positive to produce a negative.
> >
> > But how to explain the relationship? I think it's not that systems of
> > negation in language are mathematical; it's that systems of negation
> in
> > MATHEMATICS tend to the linguistic. That's the way ALL higher
> psychological
> > processes work.
> >
> > David Kellogg
> > Seoul National University of Education
> >
> >
> >
> >
> >
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