This paper summarizes the actions of class improvement and curriculum management at the Hiroshima Prefectural Hatsukaichi Special Needs School. Based on the Hiroshima “Learning Reform” Action Plan formulated by the Hiroshima Prefectural Board of Education in December 2014, the “Learning Reform Association” was formulated at the Hatsukaichi Special Needs School in order to promote class improvements comprehensively. This association was organized by the research department, the academic affairs department, and administrative positions of the school in order to discuss how to improve teaching methodologies and class activities based on the direction of the most recently revised version of the education guidelines by the MEXT. In 2016, this association has finally composed Hatsukaichi Special Needs School version of the“ Learning Reform” Action Plan. This action plan focuses on the teaching plan and unit (subject) plan used in daily class activities and creates the evaluation form to assess students’ qualities and abilities that teachers want to nurture for students, which are the work ability, cooperation, application, motivation, and knowledge. In addition, the surveys to evaluate the quality of the evaluation form were repeatedly conducted for teachers every school year to make it a better format. Based on these systematic activities, the Hatsukaichi Special Needs School has finally built the framework of class improvement and curriculum management by positioning teaching plan, unit (subject) plan, lesson making materials, etc. into the PDCA cycles of improving classes and curriculum.