Sun Ruixue, an expert in children's education, has been engaged in the research of children's psychology and pedagogy since 1980s. He founded the first Montessori kindergarten and the first Montessori international school in Chinese mainland, and later founded the Montessori Education Research Center. In recent years, she and her team have been invited to give public lectures in many cities, which has changed many parents' views on parenting and changed many children's lives.