Fourth, the modeling defense should try to embody the modeling thought, logic and value.

There is generally no standard answer to mathematical modeling, and the purpose of the competition is to find the best solution to the problem. There is a lot of room for modeling. We can solve the same problem from different angles and in different ways, but the purpose of defense is the same, that is, the defense mainly focuses on the thinking, logic and application value of modeling. In other words, how to prove that your mathematical model is optimal. Generally speaking, the modeling defense time is only 15 minutes, and the students have at most 1 minute to briefly describe the opinions of the paper, and the rest of the time is asked by the judges. The judges may ask some questions that have not been clearly considered or explained in the modeling, point out loopholes, or even? Make things difficult? However, this is mainly to investigate whether the modeling paper is made by students themselves. Therefore, students who reply will succeed as long as they are calm, confident, articulate and logical when answering the judges' questions.

Verb (abbreviation of verb) simulates defense slide.

Production (PPT)

PPT is a slide. Understandably, one after another. Pictures? Show it to others. In other words, typeset and introduce what you want to tell others. What matters in PPT is the content, and the format is only the form of expression.

In the process of defense, the wonderful PPT slides will attract the attention of the judges and make them feel refreshed. Because the total time for defense is less than 15 minutes, and the time for students to brief is about 1 minute, it is a challenge for students to briefly describe your three-day modeling work in this short time. Therefore, making PPT slides is an important part of successful defense. In general, the following points should be noted:

(1) 15 minutes of defense takes about 2-3 slides. Use only 8- 1 lines per page, or a picture. Only the key points and key technologies are listed.

(2) Don't show the names of participating schools in the slide.

(3) Don't pursue gaudiness in the slide background, and try to use a light color system.

Beige, ivory, gray, etc. ), don't do some animations that have nothing to do with the defense.

(4) Slides are generally made by summarizing modeling, asking questions, analyzing problems and solving problems.

(5) The contents of the slides should highlight their own modeling characteristics. It mainly embodies the idea, algorithm, special technology and innovation of modeling.

(6) Respondents speak 2 pages a minute, and listeners read about 4-5 pages a minute. You can't read the slides exactly, but you should speak in the language of oral and speech.

(7) Make full use of graphics to transmit more information in a short time.

(8) Add a page number to the slide, then open the master and put it? #? Change to? #/X？ X is the total number of slides, so you can know how much you said in your defense and adjust the speed.

(9) If animation can be used to dynamically demonstrate the dynamic changes of graphics in the paper, it will make the defense more exciting and better explain the thesis's arguments.

In short, the students who reply must be fully prepared to explain the relationship between the model and real life, which should be interesting. In the process of defense, the judges may ask many enlightening questions to students from the abstraction of the model to the construction of the model, and guide students to think deeply about how to build a reasonable and standardized mathematical model.

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