In the traditional mathematics teaching mode, the allocation of students' seats is directly decided by teachers. However, teachers do not have a comprehensive grasp of students' specific learning ability, so we might as well integrate the arrangement and combination of positions into the mathematics teaching process. For example, the teacher asked students to classify their classmates according to actual needs. First of all, the teacher asked the students to take out paper and pencil, divide the paper into three areas, divide the students with good mathematical thinking into one category, divide the students who have the same language as their own way of thinking into one category, divide the students who have conflicts with their own mathematical thinking into one category, and fill in the classification results in the three areas of the paper in turn. If you encounter a thought jam halfway, such as when a classmate's actual situation is unclear, you can communicate directly with the classmate to complete the classification work. Then, when all the students have finished the classification of class classmates, the teacher will guide the students to choose the students with the highest degree of fit in daily life among the three types of students, and feed back the list to the teacher. The teacher will finally screen and allocate according to the list, thus determining the students' math classroom seats. By allowing students to classify their classmates independently, not only the enthusiasm of students is fully mobilized, but also the difficulty of abstract classification thinking questions is greatly reduced through concrete primary school life, which ensures that students can really use their brains and complete the preliminary understanding of classification discussion ideas. This is a good and feasible teaching scheme.

Second, the mathematics teaching model based on garbage classification

Applying mathematical ideals to solve practical problems in primary school mathematics is also the top priority of teaching tasks. In the traditional primary school mathematics teaching classroom, teachers' classified discussion topics rarely stimulate students' interest in thinking, and students prefer to avoid classified discussion ideas and solve practical problems in other ways. Therefore, it is a teaching difficulty that primary school mathematics teachers need to break through to find practical problems that are highly consistent with the idea of classified discussion and successfully integrate into mathematics classroom.

Taking garbage classification as an example, the actual operation process of garbage classification is highly consistent with the idea of classification discussion, and teachers can introduce the concept of garbage classification into the classroom. When students can distinguish dry garbage from wet garbage, teachers can give relevant examples. For example, there are a lot of rubbish now, and their weights are known separately. Now, according to the classification of garbage, put it into your own trash can, and how much does your own trash can earn? When students can't correctly grasp the idea of classification, teachers can use some practical props to help students complete their thinking, such as treating stationery as all kinds of garbage, labeling stationery, writing down their own definition of stationery, allowing students to calculate on the desk according to the classification principle, and finally work out the answer. The seemingly simple addition has a strong idea of classified discussion, which allows students to apply it to solving practical problems while learning the idea of classified discussion. When students complete the example of garbage classification, teachers can ask students to make their own questions and interact with their deskmates according to the idea of garbage classification. When the students' interaction is completed, the teacher can let the students who have not answered the questions at the same table share their questions, and select the students who have the best understanding of the classification ideas in these topics for praise. Taking garbage classification as the starting point to stimulate students' interest in learning. After the examples are finished, students can interact with each other in mathematical language to help them master the idea of classified discussion. This is an excellent and feasible teaching scheme.

Thirdly, the mathematics teaching mode based on the classification of interest questions.

In the traditional primary school mathematics class, teachers basically use the classic examples of chickens and rabbits in the same cage to help students complete their preliminary understanding of the idea of classified discussion. But at present, the living environment of students has been greatly improved, so students are generally not interested in the problem of chickens and rabbits in the same cage. Therefore, teachers need to cater to the trend of students' interest transfer and derive interesting classification to discuss mathematical problems for teaching.