Subject: "What's Sophisticated about Elementary Mathematics?"
From: "William J. Rapaport" <rapaport@buffalo.edu>
Date: Tue, 17 Nov 2009 15:06:04 -0500 (EST)

"All whole number computations are nothing but a sequence of single-
digit computations artfully put together.  This is the kind of
thinking students will need to succeed in algebra and advanced
mathematics."

*That kind of thinking is called "recursion"!*

For an interesting article on this, link to the article on the
recursion webpage at:
http://www.cse.buffalo.edu/~rapaport/191/F09/recursion.html

or directly at:
http://www.aft.org/pubs-reports/american_educator/issues/fall2009/wu.pdf