Classification is a way of thinking based on comparison. According to the similarities and differences of things, objects with the same nature are classified into the same category.

Only by studying all kinds of things in different categories can we find out the differences between things and clarify the connections between things. In the process of classifying things, students gradually prompt the essential attributes of a class according to the classification standards, and understand and master its essential attributes, thus forming a concept. Therefore, the classified thinking method is one of the important thinking methods in learning mathematical concepts.

2. Feature classification

Feature classification, as its name implies, is to classify things according to certain attributes. For example, there are geometric figures such as triangle, quadrilateral, rectangle, pentagon, trapezoid, isosceles triangle and hexagon. We can divide these figures into two categories according to whether they are quadrilateral or not. One of the quadrangles is quadrangle: quadrangle, rectangle, trapezoid and square; There are triangles, pentagons, isosceles triangles and hexagons that are not quadrilaterals.

Classification teaching according to characteristics is generally divided into four steps: seeing, thinking, dividing and finding. Look, that is, what is the object of observation, what is it; Thinking is to think about the characteristics of the object and put forward the standard of classification (or to find the characteristics of the object according to the standard put forward by the teacher); Points, that is, according to the classification standard; Inspection is to check whether the results meet the requirements and whether adjustments are needed.

3, roulette game method

Games are the best way to stimulate thinking and interest and achieve physical and mental pleasure. Therefore, in teaching activities, games are often organized, and teaching through entertaining can greatly improve students' interest in learning.

The game teaching method conforms to the physiological and psychological characteristics of primary school students, who are lively and active, love to perform, are rarely shy and are willing to accept novel and interesting things. Using the unintentional characteristics of games will help students to form correct learning methods and good learning habits, simplify the complex, reduce the burden on students and meet the requirements of quality education.

4, dice juggling

Primary school students are natural learners, and games are children's nature. In games, children's abilities can be cultivated.

Game teaching method emphasizes students' subjectivity, not teachers' monologues, but requires students to participate together, which embodies the leading role of teachers and students' subjectivity.

5. Empirical application method

Empirical application method is to put forward mathematical facts with the same characteristics from the knowledge, skills or life experience that students have mastered, so that students can draw general laws or rules through observation and comparison, and then find out.