Teachers have different perceptions of how to enhance student learning. Whereas some take a teacher-centred perspective, others lean more towards a student-centred approach. Many studies in higher education have invoked Korthagen's onion model (2014) to explain how teachers' perspectives can impact their teaching practices. Spanning six interrelated layers, this model contains both outer (environment, behaviour, competencies) and inner (beliefs, identity, and mission) aspects. Focusing essentially on teachers' outer aspects, previous studies have paid scant attention to how particular situations affect teachers' inner aspects and, consequently, how teachers perceive student-centred learning. In this descriptive qualitative study, we explored situations that encouraged or discouraged teachers to embrace student-centred beliefs, identities and missions. We held three focus-group discussions with 18 teachers from two Indonesian medical schools, performing a thematic analysis of the data thus obtained. We found that certain situations made teachers reflect on their inner aspects, which either favourably or adversely affected their acceptance of a student-centred learning approach. Teachers' outer aspects (i.e. their prior problem-based teaching and learning experiences, learning situations from their own training as well as clinical duties) strongly interacted with their inner aspects, thereby shaping their teaching perspectives. Understanding how specific situations can influence teachers' inner aspects might help institutions to design faculty development programmes that address teachers' specific educational needs.
Keywords: Beliefs; faculty development; identity; mission; problem based learning; student-centred teaching.