List of Articles برنامهدرسی مبتنی بر درک طراحیمحور Open Access Article Abstract Page Full-Text 1 - The Effectiveness of the Curriculum Based on Understanding by Design on Academic Achievement and Problem Solving Perception of Sixth Grade Students of the Elementary School seyed taher seyedi nazarlo Firooz Mahmoodi davoud tahmasebzadeh sheikhlar hossein dehganzade 10.30495/jinev.2024.2000480.2966