Do your teachers still use traditional techniques to teach you nowadays? A revol- ution in teaching techniques is required now. In the past, we just took it for granted that a teacher's aim was to teach the students all that he knew and solve all the problems for them. Therefore, students could mot judge things on their own under this circumstance. Thus students gradually lost the ability to learn by themselves. In addition, they were only equipped with the knowledge that were taught in class and made the same judgement upon every problem which might crop up. Of course, they would find their knowledge not enough to solve practical problems.So it is time to change the teaching method. A teacher s goal is to help the students develop not only the ability to learn by themselves but the skills to make judgements on every aspect on their own. It's not necessary for the students to turn to teachers for help while meeting with difficulties. The first thing is to develop the students' abilities to make sound judgements upon any problem and overcome difficulties.All in all, the aim of teaching is to liberate, but mot to fetter the students' innate powers of making sound judgements.