I came into contact with Montessori's book when my child was more than five years old. After reading them, I feel very sorry: this book is really good, but I read it late! Fortunately, my unintentional guidance to children is basically consistent with the theory in the book. In this understanding, I have a deeper understanding of Montessori's education and admire it very much. Montessori's education is mainly about preschool children's education, so it is related to children's life growth and early development, and has nothing to do with grades, scores or even future assessment.