Trying to write down everything the lecturer says is at best inefficient, and at worst a complete waste of time when you lose the thread.
Think about it this way. If all you are doing is rushing to copy down what the lecturer says, you don't really hear it or have a chance to think about it. So you have to review anyway - if you spend that same time beforehand, you are ready with questions and already know what parts you are unsure of. With a short revision of your notes following also, you're in great shape.
The expectation is you would spend some time in formal lectures, some in tutorial sessions (usually with graduate student assistants) and some on your own - in roughly equal proportions.
I did teach some courses with more time in formal lecture (per week) and less in tutorial sessions, in which case the ratio would be adjusted to end up at around the same place.
Could be a cultural difference in seminar style?
> Its astonishing how many students resist this fact, even when it is clearly spelled out for them.
I've taken a lot of classes, I've been a teaching assistant for a lot of classes, I've observed a lot of classes, and I've never gotten the impression that the instructor expected the students to have already looked at the material. Certainly no one ever said that explicitly.
I will say that it is true that the handful of times I tried to structure my class differently and have students read material on their own before lecture, they were indeed resistant and it didn't go well. And I do think that would be a better approach. But my point is that this is overwhelmingly not what is generally expected of students, at least in my experience, mostly at state colleges in the US.
If I taught my class to those who "previewed the material" I'd be teaching to 1 or 2 students ... maybe.
In reality, the best students do exactly this.
In fact, in my experience it's not even usually possible to read material before the lecture because students are only given at best a vague idea of what specifically is coming next.
Really? That has not been my experience.
Every class I have taught had a detailed syllabus with chapter and page assignments. Generally, they were spot on until the class started getting behind.
For English classes, which book you need to have read is always listed.
Which classes would you be referring to?
I had a single class where the professor handed us a sheet of paper with all the reading and assignments in advance. It was wonderful.
It's easy to realize this in retrospect, but I think it should be pounded into students' heads starting at least in high school. You can use the sink or swim metaphor if you like, but human beings aren't robots that can just flip a switch to change behavior.
The material I teach is generally considered "hard". Most students need my help to point out "This is the main path. Learn this. Let's go over this multiple times in different ways until you see the commonality. That stuff is auxiliary--ignore that for now. Once you have the main idea down, that stuff is just a little bit of extra work."
Every class is different. One class will get an idea very quickly while another will struggle--so my job is to tweak things for that in lectures. In addition, sometimes a class will have a huge gap that you will have to back up and fill.
Even with STEM subjects, teaching has a lot of art to it.
However, if you can convince yourself that you do then by all means skip that lecture. You'll find out how accurate you were on the exam.