Social Emotional Learning (SEL) in elementary schools has become a vital approach to enhancing students' holistic development, particularly within the framework of the Merdeka Curriculum. This study aims to identify the implementation strategies, outcomes, and key factors of successful SEL programs in elementary education. Using a systematic literature review of 20 selected articles out of 157, and following the PRISMA method, this study explores patterns and themes related to SEL integration. The findings reveal that SEL is effectively integrated across various subjects and supported by the development of specific SEL-based learning models. Teachers play a central role in the implementation process. The review highlights significant improvements in students’ self-awareness, self-management, and social awareness, along with academic achievements and reductions in negative behaviors. However, few studies reported specific quantitative outcomes, although one study noted a 15% increase in classroom engagement following SEL-based instruction. This study recommends strengthening supportive education policies, offering continuous professional development for teachers, and developing reliable assessment tools to measure SEL competencies effectively.
                        
                        
                        
                        
                            
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