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What steps do junior high school students' mathematical modeling activities include?
Junior high school students' mathematical modeling activities include the following steps:

1. Understanding the problem: First of all, you need to clarify and understand the essence of the actual problem. This requires you to be sensitive to problems and understand mathematical concepts. Simplify the problem: Next, you need to abstract the actual problem into a mathematical problem. This usually includes separating the main factors from the secondary factors of the problem and simplifying them.

2. Modeling: Once you understand the problem and abstract its main features, you can build a mathematical model. This may involve various mathematical tools and skills, such as algebra, geometry, probability and so on. Solve the model: use your familiar mathematical tools to solve the established model. This may include algebraic equations, calculus, statistics, etc.

3. Verify and modify the model: Finally, you need to verify the accuracy of the model and modify the model according to the actual situation. This usually involves comparing the solution of the model with the result of the actual problem.

4. Life background: When solving a function, you can set different life backgrounds, guide independent inquiry, cooperate and exchange, cultivate students' awareness of mathematical modeling and realize the construction of knowledge. Multi-directional thinking: pay attention to multi-directional thinking and broaden students' modeling ideas.

The Concept of Mathematical Modeling and Related Knowledge

1. Mathematical modeling refers to the process of abstracting practical problems into mathematical models and solving practical problems through analysis and calculation of the models. It is a widely used method in modern science and engineering, and it is also one of the important means to solve complex problems.

2. Mathematical modeling has a wide range of applications, covering natural science, social science, engineering technology and other fields. For example, in physics, mathematical modeling can be used to describe physical phenomena and predict future development; In economics, mathematical modeling can be used to analyze the relationship between market supply and demand and predict the economic trend; In engineering, mathematical modeling can be used to design and optimize product structure and technological process.

3. Although mathematical modeling has many advantages and application values, there are also some challenges and difficulties. For example, establishing an accurate mathematical model requires profound mathematical knowledge and skills; At the same time, due to the complexity and uncertainty of practical problems, there may be errors and uncertainties in the solution and analysis of the model.