You can read more websites and books related to modeling, and you can write them according to the following steps:

First, the restatement of the problem: mainly describe the important features or key points of the problem to be solved in your own language.

2. Model Assumption: Make ideal assumptions about the model you will build.

Symbolic interpretation: Some parameters in the model you want to build are represented by symbols.

4. Modeling: This is to introduce the principles and steps of your modeling and the final model results.

5. Use the model established above to solve the problems raised in the topic.

6. Model improvement: After solving the problems raised in the above topics, you can put forward the shortcomings of your own model again, put forward improvement plans, and improve the whole model.

Seven. References.