Rezaei, Mehri, Ahmadi, Gholam Ali, Davaei, Mehdi, Saki, Reza (2023). Identification of Challenges and Obstacles of Performing Lesson Study from Teachers’ Perspective (A Phenomenological Study). *Curriculum Development and Educational Planning Research*, 13(2), 65-74. 10.30495/jcdepr.2023.707536