Abstract: The importance of leadership cannot be overstated in an environment where the goal is that every student will achieve at high levels. In effective educational environment, leadership capacity is developed and supported at every level. Teacher’s development is another aspect of leadership. The Leadership strategy is a powerful way to help administrators and teachers embed new skills and strategies in their daily work. In building a "good school" the single most important factor is effective leadership. In the present study researchers want to find out factors which improve and affect leadership quality in secondary school teachers, and improvement in secondary schools by good leadership.