Mathematics can be considered as typical example when discussing about the gap between school and university. The main problem might be how students could develop their procedural school thinking towards abstract conceptual thinking. Among neglected topics in the development of mathematics education is the frequently mentioned use of modern technology, especially hypermedia utilizing interactive Java applets. This paper highlights critical issues by implementing such kind of technology in the teaching of university mathematics. It seems that moving from old studying culture towards modern one is full of cognitive, emotional and social problems. Our experiences do not support the view that using interactive applets would bring special advantages without an appropriate pedagogical framework. Even though they seem to bring interesting and useful elements in learning and assessment, it is especially the reflective tutoring that needs more consideration.