【Abstract】There are basically two forms of motivation： intrinsic and extrinsic. This is an important section in the teacher training course that every teacher should learn. In this paper， whether or not teachers could benefit from knowledge and understanding of forms of motivation and how teachers and students could benefit will be discussed.
　　【Key words】knowledge of motivation； benefit
　　Some may argue that knowing forms of motivation is not that useful， since there are some teachers who have never learned anything about motivation still achieve great accomplishments and foster excellent students. In response to this， this paper argues that even though some teachers may be successful without knowing anything about motivation， if they know， they could benefit more.
　　1. Whether or not
　　First， each student is different and may hold various attitudes towards each academic course in different situations. If teachers could identify what kind of motivation each of them has individually in different periods and motivate with different methods， their learning outcomes could be much better. Also， for some difficult courses， teachers cannot only rely on students’ intrinsic motivation； knowledge on “how to promote more active and volitional forms of extrinsic motivation becomes an essential strategy for successful teaching” （Ryan