[Edu-sig] Hitting two targets: OO + group theory (pedagogy)

[Kirby Urner]

At 06:07 PM 03/02/2001 -0800, you wrote:
>
>============== OREGON CURRICULUM NETWORK =====================
>
>RE:  HITTING TWO TARGETS:  OO + MATH TOPIC

Note:  this had some terminological problems i.e. no such
thing as a 'relative prime', only integers 'relatively prime'
to others.  Plus there's no need to stipulate the modulus be
a prime -- in fact one of my examples on math-learn used 
a modulus of 20.  

Thanks to David Ullrich on sci.math for these tips, plus 
urging me to promote Group to a superclass so that we might 
subclass _specific_ kinds of group, like these groups of 
coprimes, as subclasses thereof.  I have since incorporated 
these suggestions into my draft code, with an eye to 
doing another web essay later.

Kirby