Compared to copying and searching materials in liberal arts, what mathematics requires is to keep thinking about. Because math problems are ever-changing, there is no need to copy or search.

"Teacher Ning's words are correct, so--"

"So, mathematicians such as Newton, Lagrangian, Fermi, and Kuron all wanted to do such a thing to make mathematics easy to understand and teach, but ended in failure. Similarly, American educators devoted their greatest energy to mathematics teaching and failed repeatedly. Why is mathematics so difficult to understand from the beginning? Because it is a world that can be called a genius, which is naturally difficult for ordinary people to understand, especially for advanced mathematics. It can only be understood."

The teachers held a breath as they listened.

Xiao Yingying inserted his voice: "Wait. Teacher Ning, are you getting off the hook? What does it have to do with what you said before students take notes?

"I didn't go far, Teacher Xiao. Because mathematics is the most difficult subject to understanding, if you want to break the deadlock, you must start by understanding it. Only by understanding mathematics can you learn mathematics well. Is it important to take notes, or is it important to listen to the teacher's lecture to understand the problem-solving ideas that the teacher said? Or is it important for ordinary people to use the minds of two things. Can you understand the teacher's ideas while taking notes? I'm afraid that this note is still messy."

After listening to Ning Yunxi's last vivid metaphor, some teachers laughed, probably because they recalled that some of the students in their class really didn't know whether to take notes or draw misunderstandings.

"What Teacher Ning said makes some sense." Teacher Gong said in agreement, "What is unclear is, if Teacher Ning doesn't let students take notes, how can they review their homework after class?"

"Practice questions." Ning Yunxi said two simple and concise words. "The knowledge points that should be discussed must be listed. They just need to read the textbooks. As for the expanded problem-solving ideas, they can only rely on a large number of representative exercises to train their memory and thinking skills. Reviewing notes is worse than reviewing classic exercises. But what is the most important thing is understanding. Each exercise allows students to understand the logic of the exam in the question. Only by understanding the logic of mathematics thoroughly can they not fall into the embarrassment of being able to do one question and the other question will not be able to do it."

The teachers listened with a stern face and listened. It can be said that Ning Yunxi's words seemed to have been inserted into the center of the problem and reached the critical point. Some teachers frowned and recalled what Ning Yunxi said at the beginning. The more they thought about it, the more they felt that the profoundness of mathematics needed to be pondered repeatedly.

Seeing almost everyone immersed in Ning Yunxi's words, Xiao Yingying tried her best to think about how to seize Ning Yunxi's loopholes again and fight back. Suddenly, the inspiration flashed, and there was: "Teacher Ning, why do I feel that your words afterwards are contradictory to the previous words? You said that great scientists can make mathematics easier to understand, and you said that if you don't take notes, you can understand mathematics by understanding mathematics? If you don't take notes, can you compare to a great mathematician?"

Regarding the old classmate's deliberate harshness, Ning Yunxi smiled: "Teacher Xiao, are you wrapping yourself in, are you?"

"I am a dull person, I really can't understand." Xiao Yingying bet and said, "Teacher Ning, don't avoid my problem."

"I didn't avoid your problem, Teacher Xiao. It's not wrong to understand mathematics. What great mathematicians tried is to turn mathematics into something that can be understood with the eyes. Is it difficult? Of course it is difficult, because mathematics itself is abstract, and it turns scientific laws in reality into formulas. From this step, it is enough to test the limits of human IQ."
Chapter completed!