SCS Self-learning tool is an application where students can have access to self-learning worksheets of all 10 subjects in secondary education. These subjects include Khmer Literature, Maths, Biology, Physics, Chemistry, History, Geography, Moral and Civic, and English. The SCS Self-learning tool has been initiated under the Secondary Education Improvement Project (SEIP), funded by the World Bank. SCS Self-learning tool has been developed by Faculty of Education (FoED), Royal University of Phnom Penh (RUPP) since 2022 which is co-developed between Cambodia-Cooperation Centers (CKCC) and the Faculty of Education, RUPP