1. In primary schools, there are two main types of numbers: natural numbers and decimals. Decimals consist of integer parts, decimal parts and decimal points. Decimals can also be divided into: natural numbers refer to numbers representing the number of objects. Natural numbers are divided into even numbers and odd numbers according to whether they can be divisible by 2. Natural numbers can be divided into 0, 1, prime numbers and composite numbers according to the number of factors.

2. Mathematics is a discipline that studies quantitative relations and spatial graphics, which is basic and humanistic. Mathematics is a bright pearl in the sea of knowledge, which helps to enlighten wisdom, develop intelligence, cultivate innovative consciousness and improve practical ability.

3. "I am a little math fan" math festival aims to cultivate students' interest in learning math, improve students' basic ability in math, make students feel that there is math everywhere in their lives, learn to care about the environment and society from the perspective of math, acquire and discover new knowledge, and make students feel a sense of accomplishment in math learning, thus enhancing their confidence and interest in learning math.

4. The essence of mathematics lies in freedom. Mathematics has made an important contribution to the observation of nature. It explains the simple primitive elements in the regular structure, with which celestial bodies are built.

5. Mathematical methods permeate and dominate all theoretical branches of natural science. It has increasingly become the main symbol of measuring scientific achievements. Mathematicians are fascinated by nature. Without infatuation, there is no math.