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Fig. 1. The educational process as a triad made of the knowledge base, the instructor, and the student.

Fig. 1A. Introduction of web-based tools and applications to enhance the in-class education process.

Fig. 1B. In distance learning, the human interactions are entirely replaced by the web, but most of the information is provided by non-web sources (textbooks, CDs, videos).

Fig. 1C. The web pages created by educators and researchers offer a lot of content, but are not designed for interaction with the instructor.

Fig. 1D. An interactive web course offers both the content and the interaction over the web. It also provides means for collaborative teaching, when several professors at different locations can teach the course with the help of advanced students.