The specific introduction of the two tutors is as follows. 1, Dr. Li Juan, director of preschool education department of Wenzhou University, professional director, Wen Da distinguished professor, member of Wenzhou kindergarten curriculum reform expert committee and Hulunbeier kindergarten curriculum reform expert committee. Presided over the national project 1, published monographs 1, translated books 1, and 3 textbooks. 2. Song Zhanmei, Ph.D., professor, leader of preschool education in Wenzhou University School of Education, head of master's program in preschool education, and tutor of master's students. Visiting scholar at the University of North Carolina at Chapel Hill and the State University of New York at Buffalo, USA, and head of the national virtual simulation experiment teaching project "Virtual simulation and suitability education for babies crying". Lecturer of national excellent resource sharing course and national excellent course, core member of national undergraduate teaching team, head of preschool education and child development research center of Shandong University's humanities and social sciences research platform, and was awarded the nomination award of Shandong University's famous teaching teacher, Shandong Province's outstanding teacher and Shandong University's top ten teachers' morality pacesetter. He has won the first prize of outstanding achievements in social sciences in Shandong Province and the first prize of teaching achievement award in Shandong Province.