I had a similar experience. My first programming teacher in high school was also my geometry teacher; a subject he taught extremely well (at least from my 15 year old point of view).
His programming class however sucked all the fun out of it. His brother-in-law was a retired manager at Motorola and gave him a bunch of (even for the time) thoroughly obsolete suggestions:
Everything started with being handed a specification. From there, you had to write a solution in pseudo code, which was a separate language from the one we were learning (TrueBasic I believe). Once your pseudo code was handed in and approved, you could begin programming; however, you had to document up-front all the variables you were going to be using and document their purposes. In addition, you had to explain in plain english what each subroutine did and what variables it would access and state whether it would simply read or read and write them (and then explain why).
I remember him saying "If you're a professional programmer, there's a good chance you'll have a manager who isn't a programmer and they'll be reviewing your work!" I think he took his brother-in-laws advice too much to heart, because he really felt like he was giving us all a real taste of what being a "real" programmer was like. Sadly, this was 1998, and I suspect software development hadn't operated like that for a good 15-20 years (or if this was a weird practice localized to Motorola in the 70s)
Any programming classes taught to minors should favor core fundamentals, exploration and creativity and avoid dwelling on industry practices which often have a shelf-life measured in years.