1. National Engineering Research Center for E-learning, Central China Normal University, Wuhan, People’s Republic of China
2. School of Educational Technology, Faculty of education, Beijing Normal University, Beijing, People’s Republic of China
3. Jingshi Liyun School of Shunde, Foshan, Guangdong, People’s Republic of China
4. Advanced Innovation Center for Future Education, Faculty of education, Beijing Normal University, Beijing, People’s Republic of China