We have established an environment for German-Japanese school education projects using real time interactive audio-visual distance learning between remote classrooms. In periods of 8-12 weeks, two classes are dealing with the same subject matter, exchanging materials and results via e-mail and Internet. At 3 or 4 occasions the classes met on screens interacting in explaining programs handled and solutions found. Participants were elementary school children speaking their native languages, translated by interpreters on the topics of symmetries in rectangles and stripes. It has been done with lower secondary students speaking English on topics related to discovering, proving, and applying Pythagoras Theorem. Another project was dealing with students and the geometry of the globe. (Author)