<![CDATA[Critical thinking is a fundamental skill that should be developed in early childhood to support problem-solving and independent learning. Preliminary observations at TK Muslimat NU 64 showed that the critical thinking skills of children aged 5–6 years were still low. This study aimed to improve these skills through educational media based on the Solite Kids application. Using Classroom Action Research with the Kemmis and McTaggart model, the study was conducted in two cycles consisting of planning, action, observation, and reflection. The participants were 15 children in Group B1. Data were collected through observation and documentation and analyzed using descriptive quantitative and qualitative methods. The results showed a substantial improvement after the Solite Kids application was implemented. Learning achievement increased from 26.7% in Cycle I to 98.8% in Cycle II, exceeding the predetermined success criterion. Improvements were observed in children’s ability to answer questions, ask questions, express opinions, and provide simple explanations. Thus, Solite Kids application-based educational media effectively enhanced the critical thinking skills of children aged 5–6 years by creating a more interactive and engaging learning environment.]]>
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