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Re: [Phys-l] detailed + narrow - sophisticated

I "listened" to E. Mazur's admission video, entirely.

He spent some time pointing out he treats N. importantly, because the rest of the course is based on it. (built)

Narrow, but crucial.

bc had to rewind much.

On 2010, May 19, , at 18:02, John Clement wrote:


As to narrow concepts, is being able to figure out the sign of acceleration
from knowing the directions of the velocity and whether you are slowing down
or speeding up a narrow concept? Is knowing that acceleration does not go
to zero at the top of the trajectory of a ball thrown straight up a narrow
concept? Is knowing that acceleration does not change direction (or sign)
when the velocity switches direction a narrow concept? Yet the sign and
direction misconceptions persist even after a student has taken calculus.
These are explicitly tested by the FMCE, but not by the FCI. I would think
these are fairly basic.

John M. Clement
Houston, TX