High school mathematics covers the basic knowledge of mathematics, analytic geometry and probability statistics, which lays a solid foundation for continuing to engage in science and engineering majors in universities in the future.

Function, limit and sequence of senior one are the basis of setting up advanced mathematics in senior one. This part of advanced mathematics is very difficult to learn, and the complete definition of function and limit can't be really understood and mastered. Not to mention the later calculus. Calculus is the soul of higher mathematics in colleges and universities, and it is also the basis for further study of engineering mechanics and electrical analysis.

Analytic geometry is not only used to understand the concepts of advanced mathematics, but also helpful to linear algebra in universities, especially vectors, spatial imagination, correlation and so on. The textbook of linear algebra is only a few dozen pages, but it is really difficult to understand, because all the expressions are beyond the original definition of thinking set in high school. And a good foundation of high school mathematics and analytic geometry is obviously essential.

Probability and statistics is a specialized course in universities, and its meaning is abstract. As for the purpose, of course, the first thing is to cope with the exams in universities. The actual employment guidance is of little significance, unless it is in some statistics and forecasting majors such as meteorology, ocean currents, economy and population. The permutation and combination part in high school mathematics is also the introduction and foundation of college probability statistics.

In addition, trigonometric functions and conic curves in high school mathematics have profound guiding significance for cultivating mathematical thinking mode, which is why these contents have always existed in high school mathematics.

So it is very important to learn high school mathematics well.