At a time when much attention is being paid to teachers’ effectiveness, there is little regard for the effectiveness of their professional support. Although professional development facilitators are frequently involved in school improvement projects, little is known about the interventions they should …

In this study data-feedback in a cyclic model of data-driven teaching was used to enhance the teaching behavior of students registered in a master course for teachers. Differences between pre- and post-test measures in a simple one-group pre-test post-tests design proved to be significant with effect …