汉武帝时所兴办的学校,尚在草创时期,并无系统可言。到了平帝元始三年(西元3年),始制定各级学制系统,当时分学校为五级:在京畿只有“太学”一级;在地方分为“学”“校”“庠”“序”四级。由郡国县邑兴办的称作“学”和“校”;由乡聚兴办的称作“庠”和“序”。 The establishment of the Han Dynasty when the school, still in the grass-making period, there is no system at all. In the first three years of Pingdiyuan (three years of the Western Yuan Dynasty), the school system for all levels was first formulated. At that time, the school was divided into five levels: in the province of Gyeonggi, there was only one level of “too much school”; in the place, it was divided into “school” “” 庠 “” Preface “four levels. Initiated by the county Yi County, called ”learning“ and ”school“; by the township set up called ”“ and ”sequence".