Discussion:  All Topics 
Topic:  Cramer's App and Tutorials 
Post a new topic to the General Discussion in PreCalculus on iPhone discussion 

Subject:  RE: Cramer's App and Tutorials 
Author:  Howard58 
Date:  Jul 24 2014 
> I can't really argue against that. However you could likely apply
> that same question to more than a handful of other topics that are
> covered as you go through high school and college math.
If
> nothing else, Cramer's Rule teaches the mechanics of calculating a
> determinant. This particular app shows the "minors and cofactors"
> approach as opposed to the shortcut method of repeating the first
> two columns. So if we're searching for some benefit in using
> Cramer's Rule, that could be a nugget to grab on to!
Your first point  I would, unless they had some intrinsic interest.
Your second point  Cramer's rule actually fits into the intrinsic
interest category, as it is quite surprising, something nice about surprises in
math, like the 3 standard triangle centers being in a line (useless, but
amazing).
 
Post a new topic to the General Discussion in PreCalculus on iPhone discussion  
Visit related
discussions: PreCalculus iPhone Tools  