Eye-hand coordination is one of the fine motor skills that is important to be developed in early childhood because it supports children’s ability to perform various activities requiring precise coordination between vision and hand movements. However, the eye-hand coordination ability of children aged 4–5 years at TK Islam Luthfiah Indralaya still needed improvement. This study aimed to improve the eye-hand coordination of children aged 4–5 years through the implementation of activities in the natural materials center. This study employed Classroom Action Research (CAR) consisting of two cycles involving 12 children as the research subjects. Data collection techniques were conducted through observation, interviews, and documentation. The activities implemented included mosaic activities in Cycle I and collage activities in Cycle II using various natural materials. The results showed that children's eye-hand coordination ability improved in each cycle. The percentage of children's ability increased from 36.80% in the pre-cycle to 50.69% in Cycle I and increased to 79.85% in Cycle II. Based on these findings, it can be concluded that the implementation of activities in the natural materials center was effective in improving the eye-hand coordination of children aged 4–5 years at TK Islam Luthfiah Indralaya
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