Who has any good suggestions on how to enliven the classroom atmosphere or guide students to explore independently in the open class of first-year mathematics? Please enlighten me.

Hello, I think the first lecture should be humorous and don't abuse students at will. Secondly, we should interact with students in class, communicate with them well, ask students to accept more teaching methods, arrange a few moderately difficult questions after class, not too many, preferably two, and ask students to answer in the next class, praise those students who do it right and let them set an example. In fact, in the final analysis, it is to cultivate students' interest.