SUMMARY WITRI MASRI, NIM. 2310246866, Development of RADEC-Based Ecosystem E-Modules (Read, Answer, Discuss, Explain and Create) to Improve Creative Thinking and Learning Outcomes of High School Students Phase E, supervised by Dr. Wan Syafii, M.Si and Dr. Fitra Suzanti, M.Si This research is motivated by the demands of 21st century education and the implementation of the Independent Curriculu…