Teacher leadership in action.

The paper outlines the concept of teacher leadership as it is used and understood within a large network of over 600 teachers known as HertsCam and coordinated by David Frost. The paper goes on to describe the network within which teachers pursue award-bearing programmes and engage in knowledge building strategies on behalf of the professional community in Hertfordshire. It discusses an approach to school improvement and teacher development known as ‘teacher-led development work’ which has its roots in action research. The paper draws on a number of teachers’ development projects to illustrate and exemplify the way teacher leadership drives change and improvement through teachers’ leadership of processes of collaboration, inquiry and influence.