Ha ha laugh ... You can say that! Modeling is hard to say simple, simple. When you see the actual problem, don't rush to think about the answer. You should think the other way around. Why should we solve this problem? What key factors will be encountered in solving this problem, and what problems will these factors produce? Just think slowly, and of course take notes when you want to. Modeling is a matter of three people, and any problems can be discussed. When you think of a factor, you must bring it up for discussion, take notes, check the information, and finally determine whether it is necessary to consider it.

The real problem is actually very simple. Mathematical modeling is different from elementary school mathematics. Modeling is mostly about extracting factors from text. Considering these factors, the mathematical formula is just a step to help you solve it.

For example: Do you think a stool with three corners is stable or a stool with four feet is stable? There is no mathematical pronunciation here, but to solve this problem, we can consider the flatness of the ground and start with the geometry of triangles and quadrangles. Of course, this is just a very simple question. If we consider different situations to solve this problem, the answer is different.