Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: Swartz letter in AJP (work-energy theorem)



You have 'em or you don't.
Owing money as an example of negative coins, has a conceptual
precipice for them, at times, I think

precipice?

bc



Hugh Logan wrote:

Brian Whatcott wrote:



At 02:55 PM 9/1/2004, you wrote:



/// I am reminded



cut



About negative work: in the world of the accounts clerk, a debit
in one column is the credit in the other with an opposite sign.
I fancy the student has a more concrete conception of coinage,
for example.
You have 'em or you don't.
Owing money as an example of negative coins, has a conceptual
precipice for them, at times, I think.



The experts on Piaget's cognitive theory might have some ideas about this.

Thanks for all the comments.

Hugh Logan