Only the substitute teacher and the students stand up at the same time. To understand the real difficulties at home, you can't do without the teacher. Most students have difficulties, and the school bus can be arranged according to classes and accompanied by teachers. It will be difficult to do things without the help of teachers. With the company of teachers, students respect teachers more and the love between teachers and students will be closer. As a teacher, although you are a university teacher, there are many problems in replacing things with money. Teachers can ask the school to introduce the school first, especially first. Learning from the past is better than being a parent. You should set an example, don't make extra money after substituting for classes ... how to be a teacher, have you done it?