The purpose of this study aimed to gain an understanding of teachers' expertise.
It also aimed to determine the extent to which improvisation was a facet of advanced professional practice. The findings reveal that teacher’s expertise is best expressed as continually evolving practice. The participants argued that advanced practitioners use their expertise to adapt and to interact with their pupils in order to create the conditions in which learning can, and does, take place. The findings also showed that teacher expertise is seen as fundamentally improvisatory through being socially constructed and that this has a positive impact on the quality of teaching. The author found that the primary concern of the teachers was to develop relationships with pupils in order to maximise interaction in the classroom.