Mobile and ubiquitous computing offer new possibilities to increase the awareness in class and support an active participation of students. To this end, context information is captured and distributed about sessions, participants and those applications that are used during a lecture or encounter among students (e. g. presentations, development and simulation environments, experiments in natural and engineering sciences). The framework of SASCIA (System Architecture Supporting Cooperative and Interactive Applications) cares for appropriate usage of this information to enable new ways of application sharing. First experiments have proofed the usefulness of the system and an acceptable performance.