This study is motivated by the importance of socio-emotional development in children aged 5–6 years, particularly regarding their ability to cooperate, empathize, communicate, and interact with peers. During the learning process, children require stimulation to ensure their socio-emotional skills develop optimally. Role-play center activities provide opportunities for children to interact, express their feelings, and learn through direct experience. This study aims to describe efforts to foster children's socio-emotional development through role-play center activities themed "The World of Aquatic Animals." The research was conducted at the Al-Muna Early Childhood Education (PAUD) center, specifically in Class B, which comprises the Asyakur and As-Syahid groups. A qualitative method was employed, utilizing a descriptive approach and field research design. Data were collected through observation, interviews, and documentation. Data analysis followed the Miles and Huberman interactive model, involving data reduction, data display, and conclusion drawing. Data validity was ensured through source and method triangulation. The results indicate that role-play center activities support children's socio-emotional development.
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