Based on this, students can preview and study by themselves. In the classroom, teachers can accurately grasp the teaching objectives and learning situations according to the information feedback of students' independent inquiry, purposefully create and grasp the learning situations by means of introduction, demonstration experiments and modern educational technology, stimulate students' interest and motivation in learning, cultivate students' excellent thinking quality, and guide students to realize learning in the process of learning. Students can actively consult teaching materials and reference books, think, analyze and solve problems, gain knowledge and develop their self-learning intelligence based on the "learning guidance plan", with learning objectives, learning priorities and difficulties as the main direction.