I really hate how so many of my classes in college have mandatory assistance. In a lot of my classes the professor just poorly summarized the textbook.

I think some courses could take inspiration from my English classes. In them, we had to read (novel or literary criticism paper) by ourselves, but in class we only asked questions, discussed the works and got help with our writing. I don't know if this can be applied to Computer Science classes, but I liked it a lot.