Sorry have to disagree with you on this one.
I think the statement is a very good one from a beginner’s point of view.

Put yourself in teacher’s shoes and try this

Explain current flow being negative to positive?
Describe what an Amp actually is?
Describe alternating current?
How does a fuse work?

How many pages of explanation did you write? Where did you start? Where did you stop your explanation?

The amount of explanation is relative to the level of understanding required.

We need to nurture our students not bamboozle them with science. Start too deep an explanation and you will loose the student and he will not come back. He may be there physically but he is not interested any more. You need to get them hooked on the subject, start your explanations of simply and as understanding grows, expand on your explanations.

I have looked at other forums on the net and I like this one best. The contributors come across as mature, experienced tradesmen. But please do not loose sight of your roots. We just as all had to learn to walk, learn to drive a car, we all were apprentices once upon-a-time. [Linked Image]

der Großvater