Abstract: In the Internet Era, computer aided design has become an important technical support in many industries, such as manufacturing industry. In the course teaching of computer aided design, it is also necessary to optimize and innovate the flipping classroom teaching mode based on the characteristics and trends of the Internet era. This paper mainly expounds the important role of flipping classroom teaching and the present teaching situation of computer aided design courses. Finally, it studies how to optimize the teaching of computer aided design courses by using the flipping classroom teaching mode in detail.

Key words: Flipped classroom teaching mode, Computer aided design course teaching, "Online plus offline"