Problem-based learning can be implemented in South African geography teacher education to foster geography students' self-directed learning skills. The purpose of this longitudinal case study was to determine B.Ed. geography students' (n = 45) perceptions of their self-directedness in learning in integrated problem-based learning experiences over a three-year period. The study used quantitative and qualitative research methods based on questionnaire application and semi-structured focus group interviews. The students completed a standardized questionnaire at regular intervals with the implementation of integrated problem-based learning experiences in geography modules over a three-year period. Focus group interviews with participants (n = 8) were employed to get a deeper understanding of the results of quantitative data. The results indicated that the geography students' self-directed learning scores increased with the implementation of an integrated problem-based learning format in geography over the three-year period. The students who measured average, below average and low levels of self-directed learning at the beginning of the study had the highest increase in self-directed learning scores over the three years. The female students' perceptions of their self-directedness in learning had higher increases in their self-directed learning scores after the problem-based learning interventions when compared to the male students.