摘要：The teaching assistant has been the key element of the MOOCS. Their competence and ability affect the study support service quality of the MOOCS. Based on the connotation and function of the teaching assistant defined, combining the onion competence model theory and the study of relevant literature at home and abroad, this paper constructs the role and competency model of the teaching assistant of MOOCS, and explores the model application in the construction of teacher staff, in order to make effort to provide support for China’s MOOCS.
