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On 2019/Feb/15, at 13:55, John Denker via Phys-l <phys-l@mail.phys-l.org> wrote:
Some people immediately answer "true" to the given question. They
know it "must" be true because it is a direct quote from the Next
Generation Science Standards, which have been adopted as mandatory
for high schools in a great many states.
If the NGSS had said that electrical interactions were *part* of
the explanation, I wouldn't be complaining. But that's not what
they said.
To rub salt in the wound, all the lesson plans I've seen that
address this element of the standard go roughly like this:
a) Assert the statement we are trying to prove:
Thing A "explains" thing B.
b) Carry out some unrelated pointless activity.
c) Assert that the statement has been proved.