Re: On the usefulness of tables definitions in RM...
Date: Sat, 21 Aug 2010 13:25:33 -0700 (PDT)
On 21 août, 01:29, Roy Hann <specia..._at_processed.almost.meat> wrote:
> Cimode wrote:
> >> I then remind the class that the tabular appearance is merely a happy
> >> accident.
> > Thanks for this insight. I am curious as to what do you think is
> > gained by your students, in the perspective of understanding
> > relations, in going through such efforts.
> Nothing, I hope. Or rather, I hope they are disuaded that the tabular
> representation has any special significance. At the very least I hope
> they don't leave saying things like "tables are two-dimensional".
> But perhaps you are asking if they discern a distinction between table
> valued variables and tables? No, probably not. I do actually say words
> that spell out the difference but I can't say I ever test their
> understanding of the difference.
You have guessed right. Don't you believe that understanding that difference is important to understand relation manipulation/ operation ?
Received on Sat Aug 21 2010 - 22:25:33 CEST