I think the difference is doing it "in your head" vs. paper-and-pencil.
I think all of us would rely on a cluster-like method if we had to
multiply two 3-digit numbers in-the-head but, if a pencil and paper was
available, would resort gratefully to the standard algorithm.
Ken
Christopher D. Green wrote:
Michael Scoles wrote:
http://www.youtube.com/watch?v=Tr1qee-bTZI
Truth be told, I use something like the cluster method in order to do
complicated multiplication problems in my head. Still, that's no reason
not to teach the standard algorithm.
Chris
--
Christopher D. Green
Department of Psychology
York University
Toronto, ON M3J 1P3
Canada
416-736-5115 ex. 66164
[EMAIL PROTECTED]
http://www.yorku.ca/christo
Don't blame me; I voted for Kodos.
-Homer Simpson, "Treehouse of Horror VII"
======================================
---
To make changes to your subscription go to:
http://acsun.frostburg.edu/cgi-bin/lyris.pl?enter=tips&text_mode=0&lang=english
--
---------------------------------------------------------------
Kenneth M. Steele, Ph.D. [EMAIL PROTECTED]
Professor
Department of Psychology http://www.psych.appstate.edu
Appalachian State University
Boone, NC 28608
USA
---------------------------------------------------------------
---
To make changes to your subscription go to:
http://acsun.frostburg.edu/cgi-bin/lyris.pl?enter=tips&text_mode=0&lang=english
