Stefan Fries

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The conventional lecture scenario implicates fundamental didactic problems due to a lack of interactivity and opportunity for feedback. In an interactive lecture, each student is equipped with a lightweight, mobile device that can be used to wirelessly interact with the lecturer during the lesson. This creates an additional channel of communication. In this(More)
New forms and techniques of teaching based on the Internet and on multimedia have appeared in recent years. In the teleteaching project Virtual University of the Upper Rhine Valley (VIROR), many Java-based teaching modules were developed for the topic Compression Techniques and the DCT and given to the students in supplement to their theory classes. In the(More)
BACKGROUND Academic procrastination, the tendency to postpone learning activities, is regarded as a consequence of postmodern values that are prominent in post-industrialized societies. When students strive for leisure goals and have no structured routines for academic tasks, delaying strenuous learning activities becomes probable. AIMS The model tested(More)
Feedback on learning strategies is a promising instructional support measure. However, research on the expertise reversal effect suggests that if instructional support measures are provided to expert learners, these learners would have to integrate and cross-reference redundant instructional guidance with available knowledge structures, resulting in less(More)
BACKGROUND Motivational interference is defined as the amount of impairment in a target activity due to the incentives of a non-chosen attractive alternative. The amount to which pupils experience motivational interference while studying or while performing a leisure activity in a school-leisure conflict situation is seen as depending on the values they(More)