Karola’s PhD work is concerned with multimodal aspects classrooms interaction. Based on video-recording from immersive history classes (in which German and Argentinian students carry out their history courses in a foreign language) three issues are investigated on the level of micro-practices: (1) Multimodal procedures of dealing with locally occurring language problems; (2) The interactional production of blackboard inscriptions and their role as material resources (“intermediary objects”) in learning interactions; (3) Practices of interactional coordination of the ‘official’ classroom discourse and the students’ ‘private’ note-taking. On the basis of reconstructing these detailed practices and patterns and their interactional ‘risks and side effects’, the study offers a set of conceptual and methodological implications for a multimodal take of Conversation Analysis (parallel activities, participants’ on-line analysis, intermediary objects).