My son took and electronics course at Benson High School in Portland Oregon.
The teacher was totally clueless and just made things up as he went along.
One of them was that the higher the voltage on a wire, the faster it travels
in the wire. It took me all day to make my son believe that his teacher was
just a clueless sot and to understand ohms law. From my son's perspective, a
teacher must really know something to be a teacher. Sadly, this is far from
true.

The good news was that I was forced to take a more active part in his
education about electronics. We built and tested projects together and it
was good for both of us.