First, let's define what is "useful". Of course, students can make irresponsible remarks about a good university by virtue of their high scores in math exams, which is really "useful". However, as a first-class discipline for the growth of human civilization, the original intention and development direction of mathematics should of course be not only "useful in exams", but also useful in social production and life-specifically, "useful" in the optimization, decision-making and design of various social affairs.

Faced with such a definition of "useful", is mathematics useful? If this question is asked by a TV reporter with a microphone to all math teachers, the answer is definitely "useful". But some people can't say exactly how useful it is. Why is this? It is because many people, including front-line teachers, have not seen the really necessary application of mathematics.

Mathematics is not about "counting sticks", "picking rotten peaches" and "predicting what to eat for lunch tomorrow". Even if these problems can be solved by mathematics, there is no need to solve them by mathematics. The importance of mathematics is not reflected in the solution of these problems. There are many practical problems that mathematics can't solve, such as "clearing the fog", "proving the necessity of biological chain", "the development trend of infectious diseases", "the design of community traffic routes", "the coordination of expert opinions" and so on. These problems can be well solved in senior high school curriculum standards, but we will choose to ignore them in teaching, because the college entrance examination has not passed yet-this is another practical problem in the future.

Let teachers and students feel the real use of mathematics, such as:

1. Using the knowledge of senior high school curriculum standards, develop a certain number of cases and exercises that can solve social real life problems, which can only be effectively solved by means of mathematics learning;

2. Open and open network information platform, so that students and teachers have the opportunity to share the problems raised or solved by our own development, and build an academic research ecology of "asking questions → solving problems → sharing".

For more details of the contest, please check at the official website of Centroid Education Physics or consult customer service.