Ge Jun, male, 1964 was born in Nantong, Jiangsu Province in June. Associate Professor, School of Mathematics and Computer Science, Nanjing Normal University, 03, 10, author of college entrance examination papers, tutor of master students, coach of China Mathematical Olympics, deputy director of General Committee of Jiangsu Mathematical Society, and president of experimental school affiliated to Nanjing Normal University. Mainly engaged in competition mathematics, problem-solving theory, mathematics curriculum and teaching theory, online courses, school education and other aspects of research. He has published more than 60 papers, participated in editing more than 30 textbooks and books, and edited "Olympic Mathematics Competition Counseling (Senior High School)", "Olympic Mathematics Course (Grade Three)" and "Elementary Mathematics Enlightenment", and edited "Primary Mathematics Research Course", "Mathematics Teaching Theory" and "Mathematics Teaching". 2003 and 20 10 have always been the proposers of Jiangsu paper number. Teacher Ge Jun is in class. According to the examinee, his proposition is quite distinctive, which requires the examinee to have strong logical thinking ability and comprehensive problem analysis ability.