1, teachers should carefully design learning tasks including pre-class, classroom and after-class, and these learning tasks should be situational and challenging, so as to stimulate students' interest in learning, awaken students' desire for learning, trigger students' learning thinking, and make students feel that they are the main body of activities, and they can independently operate these contents and actively carry out learning activities.

2. Network teaching should pay special attention to students' learning process and adopt various ways to strengthen students' learning guidance. Academic information can be collected through individual exchange homework evaluation; Through the form of learning task list, guide students to learn the teacher's teaching video with the task; Promote communication and interaction among students through online questions, quizzes and group discussions in discussion forums.

3. Interactive communication in online learning is a difficult problem. Teachers should adopt various ways to increase interaction, such as setting aside time for students to ask questions and give feedback in live class, and using interactive tools such as nailing, WeChat and QQ to track the progress and situation of students' homework completion through voice messages.

4. In online teaching, teachers should establish interactive communication methods according to the teaching content, students' characteristics and learning situation. Before the teaching begins, teachers can ask questions in the discussion area of the platform, or collect students' opinions through multiple-choice questions, short-answer questions and other tests to provide a basis for students to discuss subsequent design issues; After students watch recorded videos or online classes, teachers can use voting and testing tools on the platform to understand each student's learning situation; Teachers can also give students written homework on the platform, and understand the students' mastery of the whole class through homework correction. In addition, it can also show students' online academic achievements and excellent homework, and give play to students' collective education function. In particular, some practical learning results based on projects can be displayed in students' study groups.