Poll: the sum(7,9)
mswindel at santacruz.k12.ca.us
Tue Mar 15 13:20:17 CST 2005
Thanks to all who have responded so far. Very interesting answers.
I'm primarily interested in how the "answers" to single-digit
addition/subtraction combinations "pop" in to our mind... how these
discreet "facts" are stored and retrieved.
The other, more complex, strategies involve problem-solving techniques,
and are interesting, but how different people retrieve the simple
"facts" from their own customProperty containers is what I'm most
curious about. If these require problem-solving in some cases, so
much the better. Some "facts" appear to be recalculated each time for
I also miswrote when I said "hear" 9 + 7. I meant hear or see.
On Mar 15, 2005, at 9:55 AM, Ken Ray wrote:
> I think I'm a mixture of what most people have posted so far... for
> digit numbers, the answer just "pops" in because I've memorized it.
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