Mathematical modeling competition is a very challenging and practical competition. For freshmen, participating in this contest can not only exercise their mathematical modeling ability, but also improve their teamwork ability and practical problem-solving ability. Here are some suggestions for preparing for the mathematical modeling competition:

1. basics: first of all, you need to master some basic mathematical knowledge, including linear algebra, calculus, probability theory and statistics. This knowledge is the basis of mathematical modeling.

2. Learn modeling methods: Secondly, you need to learn some commonly used mathematical modeling methods, such as linear programming, dynamic programming, graph theory and optimization theory. These methods can help you better understand and solve practical problems.

3. Attend training courses: If possible, you can attend some training courses on mathematical modeling. These courses usually teach some practical modeling skills and methods, and provide some practical modeling cases for your study and reference.

4. Do more exercises: theoretical knowledge and modeling methods need to be consolidated through a lot of exercises. You can find some mathematical modeling exercises to do, or participate in some mathematical modeling simulation competitions.

5. Form a team: Mathematical modeling competitions usually require teamwork. You can find some like-minded students to prepare for the competition.

6. Prepare in advance: Finally, you need to know the rules and requirements of the competition in advance and make a reasonable time plan to ensure that you can get ready at the beginning of the competition.