Practice and Reflection on the Reform of Online and Offline Mixed Teaching Mode

With the rapid development of modern Internet technology, the combination of traditional education form and modern computer technology is deepening. And the "Internet plus" education mode has gradually been applied to traditional classroom. Online and offline blended education has gradually become a new educational form which is more in line with students' recognition rule. Based on this, taking the reform of online and offline mixed teaching mode of computer network course as an example, this paper expounds the practice and reflection of online and offline mixed teaching from four aspects: mixed teaching goal, exploration and practice of mixed teaching, application effect of mixed teaching, and application reflection of mixed teaching, and puts forward that online resource construction should be the starting point for carrying out mixed teaching, The teaching design is student-centered, with a variety of flexible teaching methods. The mixed teaching design is done from the whole process of pre class, in class and in class. The interactive function is fully used to understand the students' knowledge in time, and the corresponding solutions are put forward for the common problems in the mixed teaching for reference.