Teacher cognition research, which primarily focuses on identifying what teachers think, know and believe, is crucial to understanding teachers' perceptional structure as it relates to their instructional practices. Thus, teachers' cognition on assessment constitutes a significant research field not only in order to understand the foreign language…

Teacher leadership can be described as taking over voluntary responsibilities during the educational processes and activities, forming independent projects, influencing his/her surrounding, and sufficiency in developing professional qualifications of his/her collagues. "Leader teacher" is a general term that applies to individuals in a…