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Re: Reply to Pragmatic
Posted by Rich/CA/Math on 4/25/08

    On 4/25/08, Pragmatic wrote:
    > I forget things. But I find that when I revisit something in math that I mastered,
    > the re-learning process is a couple of minutes at most, since it's refreshing
    > memory
    > or quickly re-deriving what needs to be used. But though I've mostly forgotten
    > synthetic substitution, I'd never claim that I'd never seen it.

    Exactly. I got a call from my daughter the other day as she and a couple of friends
    were at the local Starbucks having a study group for an upcoming calculus
    test. "Daddy, can you come help us?" I went over and they were working on the
    volume of solids of rotation. Haven't done it in over 20 years, but within 5
    minutes I was back up to speed and helping them. It's the difference between
    memorizing math and knowing math.


 
 
 
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