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Re: Energy before work

REPOSTING BECAUSE IT WAS LOST, AS FAR AS I CAN SEE.
Ben Crowell wrote:

I have been experimenting with different teaching methods
for four years at a community college. Some of my experiences
with active learning were just as negative as Ludwik Kowalski's,
but I've reached different conclusions.

I do not remember exactly what I wrote but the overall experience
with this particular evening class was not too negative. They just
pushed me toward "lecturing". I call it "reviewing topics together".
To study ahead of me is still expected but I no longer test them on
this each time we meet.

... my free online book at www.lightandmatter.com

Ben wrote textbooks and they can be downloaded for free, or
purchased at very low prices. They are apparently used at
Fullerton University. I noticed Ben's attempt to introduce
energy before work (see Chapter 2). I would not do it in
the same way but that is another matter. So far I am not
convinced that one can teach energy before work without
introducing unnecessary complications.
Ludwik Kowalski