This study aims to produce Student Worksheet on quality material for the Class XI High School Respiration System. This research was conducted at the Faculty of Teacher Training and Education, University of Riau, SMAN 1 Pekanbaru and SMAN 8 Pekanbaru in October-February 2021. The type of research used was Research and Development (R&D) with the ADDIE research model consisting of 5 stages, namely…