This confuses me. You first write "lecture of one hour" which also means time to prepare the material etc. (so more than one hour) but then you write "devote a few minutes".
Okay, I acknowledge I've underestimated (may be) time required to; also it leads to a confusion. But I was talking with view in my mind that we already have a lot of content and for many topics we will just need to align it to the classroom sessions. This will reduce efforts and time for most of the classes.
This sounds a lot like Base58 from @niftynei.
At first glance, these courses seem to be designed for someone who is willing to learn coding or technical part of blockchain etc. I don't say, I don't want to include technical knowledge in the classroom but that would be in the advanced level classes.
Who I really want to target with these classrooms are newbies who have just stepped foot in Bitcoin want to learn everything from the basics.
After everyone's valuable input, I think I should come up with another post where I'll add these thoughts.