Background: Many education systems internationally expect schools to participate in continuous instructional improvement programmes. One tool used within these processes is the structured, rubric-based classroom observation, focused on the evaluation of teaching. Such observations are a common feature of formative evaluation systems, teacher…

We draw on Engeström's (2011a) formative intervention approach to bring together mentor teachers and university supervisors to construct a tool for structuring observations and mentoring student teachers. Data include videos and transcripts from seven meetings where participants discussed mentoring and viewed video records of teaching practice to…