(1) Establish a new outlook on classroom and students. Inquiry teaching has changed people's educational concept and made it clear that teachers are the guides, organizers and collaborators of students, and students are the masters of learning. Teachers should pay attention to the development of students, pay attention to the formation of learning methods and the cultivation of emotional attitudes while attaching importance to basic knowledge and skills.

(2) Explore by reason, and discover laws in exploration. The law of chemical reaction is a scientific conclusion summarized by predecessors on the basis of practice. In teaching, students are not allowed to understand the formation process of chemical knowledge and experience the charm of scientific inquiry. How to make students remember empty conclusions? Even if students learn by rote, they don't need it Let students go through the process, fully express their opinions, and induce students to make scientific inquiry in thinking and reasoning.