That’s not a good method of teaching. It’s a lazy method. You already have access to what’s in the book. But, at least you don’t have to spend your own time reading by yourself. I’m guessing test review day is gonna be “OK, here’s what’s going to be on the test, question by question.”
Some people can learn just by reading. Some learn more from lecture.
Whether you’d be better off at a different school depends on a few things…Is your school accredited? I ask because if it’s not, and you do decide to change careers, the classes you took there are not going to transfer to a college/university.
Just some things to think about.