Vygotsky's Zone of Proximal Development and Problem-based Learning: Linking a theoretical concept with practice through action research

This paper describes how an influential theory of cognitive development informed teaching on a problem-based learning (PBL) course in Zoology. Vygotsky's zone of proximal development (ZPD) was introduced to the course tutors as a set of 'common sense' ideas with the potential to enhance professional practice and improve teaching in PBL. Through collaborative action-research, a reflexive critique of experiences was systematically documented over 3 years and the present account focuses on three areas of practice influenced by the ZPD. These were a new emphasis on diagnostic teaching and learning, creating and maintaining instructional environments centred on authentic activities and supporting students as peer-teachers to help develop student autonomy in the context of collaborative learning.