I'll throw out my 2 cents on this one because it happened to me. It's not always the students who are the problem. We had some like bradap is talking about too.
I went through a state approved apprenticeship course through the local community college where I was located. Let me say that I was very eager to do this I had been in the trade for about 6 years before I even started it. I knew I had some big holes to fill in my head. Went through the semester using the required text for lessons maybe 3 times. Other than that we used the handouts prepared by the instructors, which were good and very informative but, it was his own curriculum. Very little lessons on theory had to learn that on our own.

Second year starts, instructor comes in and says we are supposed to learn Blah blah blah "but I figure most of you guys have been doing that for awhile so we will jump right into motor controls". Half way through the year he is injured in an accident. Replacement instructor comes in pulls out the text asks where we are and we all say "we haven't even used it yet" almost in unison, no one was happy about shelling out $100 on a book that we weren't using. The Replacement instructor finished year 2 and we were lucky enough to have him for year 3. He did his absolute best to fill in what we had missed after learning how the first year and a half went.

Fourth year was O.K except that the instructor’s claim to fame was he could "do anything faster and cheaper than anyone around” Lets just say he was what most would call a hack. The owner of the company I worked for cringed when he found out who the fourth year instructor was. The guy was known as a hack around town. He even handed out his time saving techniques for speed! All of them seemed to compromise safety, integrity or NEC.

This has really been burning at me since I started coming to this board. I don't always have the confidence in some areas to jump in. But I am always lurking about when time allows filling in the gaps. [Linked Image]

Wirewiz