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Re: FW: [xmca] a minus times a plus
- To: "Chval, Kathryn B." <firstname.lastname@example.org>
- Subject: Re: FW: [xmca] a minus times a plus
- From: Mike Cole <email@example.com>
- Date: Wed, 29 Apr 2009 17:58:51 -0700
- Cc: "eXtended Mind, Culture, Activity" <firstname.lastname@example.org>
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Seems like this could be done as a computer program. I think maybe Colorado
Boulder has a phet demo that, with some simplification.
thanks for the suggestion, Kathryn
On Wed, Apr 29, 2009 at 6:47 AM, Chval, Kathryn B. <email@example.com>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: firstname.lastname@example.org [mailto:email@example.com]
> 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.
> PS -- Hmmm, or was that something about the freedom of necessity from
> another prior millenium?
> PPS-- I'll give your version a try. First chance I get,
> On Tue, Apr 28, 2009 at 7:00 PM, David Kellogg
> > 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
> > 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
> > my discography for the last two examples.)
> > See if he can explain WHICH sentences mean something is worth it and
> > 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
> > MATHEMATICS tend to the linguistic. That's the way ALL higher
> > processes work.
> > David Kellogg
> > Seoul National University of Education
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