Date: Nov 11, 2012 10:09 PM Author: Robert Hansen Subject: Re: How teaching factors rather than multiplicand & multiplier confuses kids!
On Nov 11, 2012, at 1:54 PM, Gary Tupper <email@example.com> wrote:
> But we should always check that our common sense is indeed sensible. Consider the function:
Common sense is never "sensible", if by "sensible" you mean "reasonable", even when it is right. That is the nature of common sense, it isn't reasoned, it is a concrete sense.