A real-time interactive instructor framework for distance education

Virtual classroom based on Internet is a promising tool for distance education. However, it is difficult for the instructor to instantly know the feedback and evaluation to learners in online courses. The paper gives one instructor-oriented framework for virtual classroom, by which the instructor may know each learner in real time and instantly adjust his approach to teaching. Moreover, in order to improve the participators' freedom for learning & teaching, electronic board is also introduced based on PowerPoint technology. These may provide a good face-to-face interaction among participators. At last, problem-based teaching technology introduced improves learning efficiency & interests.