Abstract
Leadership is an important concept that has been researched in educational science literature.A document analysis of teacher leadership is made in this research. In this quantitative study, it was determined that the expressions of teacher leadership and teacher leader were used closely. In this research, using these keywords, Google academic, Google scholar, Ebsco and Eric databases were scanned. "Teacher leader" is a name given to people who took teacher leadership roles and dimensions as a lifestyle and are leaders both inside and outside the school. In this research, leader teacher roles are inspected beneath the topics of facilitator/enabler, helper of teachers, the catalyst of personal growth, creator of new ideas, source of emotional support, source of knowledge, the regulator of programs and politics, and evaluator of other teachers. In this study's outcome, it's occured that teacher leaders' primary roles are directed towards development and problems of whole peers of school. Moreover, it's concluded that teachers play an active role in achieving the desired success in educational environments. In this context, with this study's literature scanning, identifying and introducing teacher leadership and thus contributing to literature is purposed. As a result of this research, the importance of supporting leadership roles and behaviors of teachers who work in educational institutes is determined and suggestions are presented.