List of Articles کلاس خصوصی Open Access Article Abstract Page Full-Text 1 - Analyzing the Shadow Education System in Iran Ali Khalkhali Zohreh Shakibaei Narges Baseri Open Access Article Abstract Page Full-Text 2 - A Study of the relationship between empirical sciences high-school third graders` after school activities (hours dedicated to doing assignment, studying test-books, supplementary books, participating in tutorial math classes) with math academic achievement Golam Hossein Mikaeillou Golam Hossein Entezar Foumani