Students learn their lessons in class. They sit in the classroom listening to their teachers. This is a way of learning. Is this the only way for students to learn? Of course not. There is another way to learn. Students can teach themselves. For example, if you cannot remember something when you are doing your homework, what will you do? You can look at your book to find the answer.
How to teach yourself? The first thing you do is reading. Read something you are interested in, or you have to read. The second is that you must ask yourself questions. A clever student is usually good at asking questions. The third is to answer the questions yourself by working hard, by reading books, and sometimes by asking other people. These are the ways of teaching yourself. If you keep doing like these for a long time, you are sure to have great progress in your study.