Advanced mathematical thinking
Affect and mathematics education
Mathematics (student) teachers and teacher educators as learners
Mathematics teachers' knowledge and practices
Numerical thinking
Proof and proving in mathematical education
Research on children's early mathematical development
Research on the learning and teaching of algebra
Research on the psychology of mathematics education : past, present and future
Research on visualization in learning and teaching mathematics
Socio-cultural research in PME
Teaching and learning geometry with technology
The complexity of learning geometry and measurement
A thirty-year reflection on constructivism in mathematics education in PME
The place of equity and social justice in the history of PME
The role and uses of technologies for the teaching of algebra and calculus