Professor Leonidas Kyriakides, Department of Education, University of Cyprus, gives a talk for the Department of Education public seminar series. This lecture refers to the dynamic approach to school improvement (DASI) which attempts to contribute to the merging of educational effectiveness research and school improvement. The main underlying assumptions and the implementation phases of DASI are presented. The recommended approach gives emphasis to school policies and actions taken to improve teaching and the school learning environment. Moreover, the importance of establishing school evaluation mechanisms and collecting data to identify improvement priorities is stressed. Furthermore, DASI emphasizes the use of the available knowledge base in relation to the main aims of the efforts made by schools to deal with the different challenges/problems being faced. Therefore, an advisory and research team is expected to support school stakeholders develop, implement, and evaluate their own school improvement strategies and action plans. Five group- randomization studies investigating the impact of DASI on promoting quality in education are also presented. These studies reveal the conditions in which DASI can promote student learning outcomes. Finally, suggestions for research, policy and practice are provided.