Date: Jul 4, 2013 12:44 PM
Author: Clyde Greeno
Subject: Re: Is logic part of mathematics - or is mathematics part of logic?

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From: "Joe Niederberger" <niederberger@comcast.net>

Sent: Thursday, July 04, 2013 8:25 AM

To: <math-teach@mathforum.org>

Subject: Re: Is logic part of mathematics - or is mathematics part of logic?

> R Hansen says:

>>Forget a sixth grader, how exactly do you teach modus ponens to anyone?

>>Again, to my analogy, how do you teach someone what a rose smells like?

# You take them to a rose bush, and let them smell it, and say, "This is

how roses smell". If you are unwilling to call that "teaching", you have

have confused "teaching" with "telling" ... as have all too many American

educators.

# Likewise, you take them to where they can experience modus ponens, and say

"This is called 'modus ponens'." And the easiest and most meaningful place

for learners to encounter modus ponens is within their own routine

conversation. All functional humans naturally use it ... its built into the

evolution of their thinking processes. Any "teaching" of it is merely

calling attention to it, and giving it a name ... which does, indeed, pave

the way for further learning more about it.

>

> Here's an analogy:

> How do I teach you to interpret a simple picture accurately? The answer,

> my friend, is blowin in the wind...

>

> Forget the fact that modus ponens has been taught for ages upon ages, its

> more fun to make up RH style koans.

>

> Cheers,

> Joe N