Life is the birthplace and root of mathematics, so mathematics can find its trace in life. "Mathematics Curriculum Standard" points out: "Mathematics is an indispensable tool for people's life, labor and study." Since mathematics comes from life, our mathematics teaching should not only be a simple knowledge transfer, but should follow the concept of coming from life and living in life, so that we can realize that mathematics is around us and feel the interest and function of mathematics. For a long time, why are some of us not interested in mathematics and even afraid of learning it? The main reason is that mathematics is too far away from our life, so it makes us feel boring and abstract. At present, the new textbooks have overcome this drawback. It links mathematics with life, with rich themes and various forms, and guides us to explore some mathematical problems. According to the requirements of the new textbook, teachers try their best to make mathematics close to children's lives and pay attention to meeting the needs of children's physical and mental development.