I've heard it dates back to when people didn't have easy access to precise time. It would allow students to hear the hourly bells and walk to the class.
I've heard it dates back to when people didn't have easy access to precise time. It would allow students to hear the hourly bells and walk to the class.
All my classes were 1.5 hours long. Yet professors still regularly chose to introduce new material on days with back-to-back classes, leaving standalone classes for practice or “less important” topics.
Almost exactly as much as one that's 55 (or 60) minutes long but many people are late to.
But yes, "1 hour" is fairly short for any deep topic progress. I vastly prefer classes that are 2 or 3, it gives time to have questions and not be in a blind rush.
(There's some nuance to that statement as science courses tende to have labs - I don't remember why first-year physics was a requirement for software engineering, but it was - mathematics courses tended to have weekly assignments, and at least one software course had a very unusual style of putting us in a room one whole day per week for a semester to work on group projects.)
As an aside, it's a little absurd that people wouldn't go to class given how much money they're paying.
Private colleges are around $39k USD per year. That's a lot of dough per class-hour.
The reality in my experience is that, whilst students are on paper adults (mostly) and responsible for their own successes and failures, a significant number benefits from being forced to attend. That's unfortunate for the ones that could "safely" skip the lectures and have to go, but on average it leads to better overall outcomes. So in that regard the attendance policies are sensible.
For some lectures it was great, you really needed those 15 minutes to get coffee, go to the bathroom, etc., but for some late afternoon stuff, you just wanted to shorten the last three breaks to 5 minutes and leave half an hour early.
Thankfully
It’s a good convention.
Most lectures were allocated double slots, though, for example from 10 to 12. In that case the actual official lecture time would have been either 10:15 to 11:00, followed by a quarter hour break, and another 45 minutes from 11:15 to 12:00. Alternatively -- and probably more commonly -- there was no break, and the lecture was 1.5 hours from 10:15 to 11:45.