For what problems, what models have been established, what methods and skills have been used to solve what problems, and what results have been obtained? Show it to them, and let the teacher who reviewed your paper see the bright spot. Problem analysis: yes or no. No means that you put the problem analysis into the text description of the paper, and don't be maverick. Discuss what you need to do to solve the problem. In short, the purpose of the paper is to make readers understand what you have written more quickly, without sticking to something that can be ignored. However, the abstract is the most important part of the whole paper. You must work hard to write it. There are many award-winning papers on mathematical modeling on the Internet. If you can't write a paper yet, it is necessary to read it. I participated in mathematical modeling in northern Jiangsu, and won prizes in national mathematical modeling and MCM American mathematical modeling. These are my experiences.