NTU and Zhejiang University both developed educational technology majors after introducing talents from comprehensive universities. From the ranking, both of them have doctorates, while Sang Xinmin from NTU and Zhang Jianping from Zhejiang University. From the perspective of research orientation, NTU seems to pay more attention to philosophical speculation-culture and environment, while Zhejiang University may pay more attention to practice.

However, if you want to take an examination of educational technology, you'd better choose a normal university, such as East China Normal University (both of them are from East China, but their majors are relatively strong, and they have much greater say in the subject).