The subject of this volume is 'discussion culture' in German lessons at school. Studies of teaching scenarios undertaken from the perspectives of conversation analysis and didactics show how students conduct discussions with their peers or with the teacher, more specifically, how they introduce, develop, and conclude exchange sequences of an adversative, convergent, or divergent nature. The result is an empirically based stocktaking of discussion processes in the institutional context. As such it is eminently well suited as a basis for didactic reflection on the potentialities and limitations of this form of teaching.