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Topic: Failing Linear Algebra:
Replies: 91   Last Post: Jan 10, 2007 12:56 PM

 Messages: [ Previous | Next ]
 James Dolan Posts: 106 Registered: 12/10/04
Re: Failing Linear Algebra:
Posted: May 10, 2004 11:56 AM

in article <rsku90pc4s1omkhee2sd1vdpt17eicehut@4ax.com>,
david c. ullrich <ullrich@math.okstate.edu> wrote:

|On Sun, 9 May 2004 20:43:01 +0000 (UTC),
|jdolan@math-cl-n01.math.ucr.edu (James Dolan) wrote:
|
|>in article <c6oo3g\$nd0\$1@news.math.niu.edu>,
|>dave rusin <rusin@vesuvius.math.niu.edu> wrote:
|>
|>|>> The student should be able to give a rendition that is at least
|>|>> equivalent to the one given in the book and that uses precise language.
|>|>
|>|> Let me try that one...independence means a group of vectors (in
|>|> homogenous form???) such that if they all equal the zero vector, then
|>|> the only possible way for that is the each coefficient of every vector
|>|> has to equal 0 too.
|>|
|>|OK, now, jdolan and others who pooh-poohed the idea of memorizing
|>|definitions: what say you to this student? Seems to me he has
|>|made my point for me ...
|>
|>
|>hi dave. i've been too busy to keep up with this thread lately, but i
|>happened to glance at the new "linear algebra definitions" thread that
|>the student in question started a couple of days ago, and it looks
|>
|>anyway, i think it does students a great disservice to conflate the
|>very important ability to engage in precise reasoning with the
|>completely unimportant ability to memorize definitions.
|
|And you _really_ think that if he's saying things like "independence
|means a group of vectors (in homogenous form???) such that if they
|all equal the zero vector, then the only possible way for that is
|the each coefficient of every vector has to equal 0 too" he's
|going to be able to engage in precise reasoning about independence?

presumably if i thought that then i would have said something remotely
like it. i'll take the fact that you're spewing nonsense like this
now as your concession that you've lost the argument.

--

Date Subject Author
4/24/04 Daniel Grubb
4/24/04 Marc Olschok
4/24/04 Daniel Grubb
4/24/04 Marc Olschok
4/24/04 Daniel Grubb
4/24/04 Thomas Nordhaus
4/24/04 Dave Rusin
4/25/04 Jonathan Miller
4/25/04 Felix Goldberg
4/24/04 Daniel Grubb
4/28/04 Tim Mellor
4/28/04 James Dolan
4/28/04 Daniel Grubb
4/28/04 James Dolan
4/28/04 Daniel Grubb
4/28/04 gersh@bialer.com
4/29/04 Daniel Grubb
4/29/04 Dave Rusin
4/28/04 Guest
4/29/04 Guest
4/28/04 Guest
1/10/07 David C. Ullrich
4/29/04 Dave Rusin
4/28/04 Guest
1/10/07 Law Hiu Chung
1/10/07 Dave Seaman
1/10/07 Marc Olschok
1/10/07 George Cox
4/28/04 Guest
1/10/07 Dave Rusin
4/28/04 Lee Rudolph
4/28/04 Guest
4/28/04 Guest
1/10/07 Marc Olschok
1/10/07 Toni Lassila
4/29/04 Guest
1/10/07 M L
1/10/07 Thomas Nordhaus
4/30/04 Guest
1/10/07 David C. Ullrich
1/10/07 Toni Lassila
4/30/04 Guest
1/10/07 George Cox
1/10/07 Marc Olschok
4/30/04 Guest
4/30/04 Guest
4/27/04 Guest
1/10/07 Thomas Nordhaus
1/10/07 David C. Ullrich
1/10/07 Dave Rusin
1/10/07 David C. Ullrich
5/9/04 James Dolan
5/10/04 David C. Ullrich
5/10/04 James Dolan
5/10/04 David C. Ullrich
5/10/04 Marc Olschok
5/10/04 David C. Ullrich
4/27/04 Guest
1/10/07 Thomas Nordhaus
4/27/04 Guest
1/10/07 magidin@math.berkeley.edu
1/10/07 David C. Ullrich
1/10/07 Marc Olschok
1/10/07 David C. Ullrich
1/10/07 Tim Mellor
4/28/04 Daniel Grubb
4/28/04 Daniel Grubb
4/27/04 Guest
1/10/07 David C. Ullrich
4/28/04 Dave Rusin
4/28/04 Daniel Grubb
4/27/04 Guest
1/10/07 Marc Olschok
4/24/04 Wayne Brown
4/24/04 Thomas Nordhaus
4/24/04 David Ames