ABSTRACT
The chapter presents the research format of content-specific Design Research for teachers. It is exemplified by a specific PD content, namely “noticing and fostering students’ mathematical potentials”. The PD content requires further specification of what exactly teachers have to learn and a PD design for promoting teachers’ professionalization in this PD content. By conducting and analysing design experiments in PDs, the PD content is further specified and the PD design is iteratively refined in order to take the teachers’ learning pathways into account. Some typical outcomes of the analysis are presented, in particular teachers’ typical perspectives while noticing and fostering students’ potentials.
