Mathematics for me is: all the time, and with my growth! ? For every child in China, it can also be said that every child in the world, mathematics has entered his or her life since the day he or she went to school and has been with him or her for more than ten or twenty years. However, at that time, mathematics was only a compulsory course, and our study was not spontaneous, but passive. For everyone who is curious about the world, mathematics is not only a course, but also a window and tool for us to know, explore and even transform the world. She exudes charming charm. She is no longer a performance of scores, she is a spirit of flesh and blood. Remember the Italian physicist and astronomer G Galileo? Galilei) said, "In order to understand the universe, people must first learn the language used to describe them and explain the letters of this language. The universe is written in mathematical language, and its letters are geometric figures. Without these letters, human beings will know nothing about it and can only wander in the dark maze.