In today's curriculum reform, effective preview is one of the important links in the "Three Books" university classroom. The method provided to students is like giving them the key to open the door to knowledge. Students' innovative consciousness can only be cultivated in the process of independent exploration and problem solving. Wuhe county's "three-oriented" efficient classroom model provides such a platform and has great ability to cultivate students' innovative ability. Therefore, let students improve their classroom innovation ability through preview, questioning and other specific activities, so as to improve their own quality and realize quality education. The following points are my teaching experience. Modern educational theory advocates student-centered and emphasizes students' initiative in learning. The role of teachers is to organize, guide, lead and promote students' learning, give full play to students' initiative, enthusiasm and creativity, so that students can learn most effectively and achieve the best teaching effect. Even if students have the awareness of autonomous learning, teachers should adopt flexible and diverse teaching methods according to students' actual interests and abilities, so that students' awareness of autonomous learning can be transformed into students' practical activities. In the teaching process, students' knowledge must be acquired through their active thinking and practical activities, and their enthusiasm, initiative and independence must be stimulated in the learning process. Therefore, returning the classroom to students, giving them the initiative to learn, allowing them to study independently, giving them enough time to study independently, creating an "atmosphere" for self-study and giving full play to their initiative in learning are the main channels to cultivate students' self-study ability. Second, provide "learning" methods to cultivate self-learning ability.

The importance of preview lies in independence, which is an important link for students to acquire basic knowledge independently.