Because primary school mathematics contains many mathematical thinking methods associated with higher mathematics.

Primary school mathematics is an important subject in compulsory education, which lays the foundation for students' further study. It contains many mathematical thinking methods associated with higher mathematics. Therefore, according to the spirit advocated by curriculum standards, it is necessary to infiltrate some basic mathematical thinking methods into students purposefully and consciously in primary school mathematics teaching.

In the field of mathematics, there are countless mathematical thinking methods, and each mathematical thinking method flashes the spark of human wisdom. The age characteristics of primary school students determine that some mathematical thinking methods are not easy to be accepted by them, and it is unrealistic to infiltrate so many mathematical thinking methods into students. Therefore, we should selectively infiltrate some mathematical thinking methods.

The origin of mathematics

According to legend, the history of mathematics began with "knotting notes". At that time, people were in primitive society. In order to represent things and numbers, people tie knots on ropes to indicate quantity and size. According to legend, mathematics comes from Land Survey. More than 5000 years ago, the ancient Egyptians learned agricultural production. At that time, the river flooded and flooded the cultivated land every year.

In order to calculate the lost land conveniently, the king of Egypt sent people to measure it door to door, so as to reduce the people's rent accordingly. Thus, geometry was born.