The common assessment method is manager assess teachers during teaching process, recruiting students’ opinions or roll call which is classified in traditional assessment methods. In this study, besides detection of present system problems, recruiting of video data as a new method is investigated to obtain a teacher performance assessment in classroom which is scientific and attributable. Finally, video data as a new way to evaluate teacher’s performance was identified as a suitable method. We argue that using of video data as a new method for evaluating the performance of teachers in the classroom in order to achieve the objectives of the performance assessment system and the current system problems was helpful.
