There is no substitute for reading the book preferably before class discussions/lecture/group work. Quite a few students do not follow this advice. They think they can just sit and passively listen during class and use the “get help” or “show me how” feature of whatever learning management system they use but by the time the tests and final come around they find out by not reading the book they are only getting the tip of the ice berg in terms of information.
It takes time to read each chapter for each class before class.
There are no shortcuts.
You can’t Google your way into a professional career and last more than three weeks.
At some point you have to know what is in the book.