This paper explores the concept of a stimulating spatial-material environment, focusing on the work of preschool teacher in the Republic of Croatia. Through a review of available literature and conducted research, the paper highlights the importance of the spatial-material environment in encouraging children's exploratory activities. It examines how the organization of space, the culture of kindergartens, and the diversity and approach of preschool teacher can influence children's curiosity about the world around them, thus fostering learning. This research specifically concentrated on indoor spaces and activity centers, suggesting that future studies should also include outdoor activity centers for a more comprehensive understanding of children's experiences and development. The research results indicate that organizing the daycare room into activity centers is crucial for encouraging children's exploratory activities. The kindergarten culture is recognized as an important factor in fostering these activities, and a diverse and stimulating material environment in the daycare room is essential for learning. The role of the preschool teacher is significant in promoting exploratory activities, especially when they regularly follow children's interests and organize new exploration centers. These findings underscore the critical role of the spatial-material environment and the work of preschool teachers in stimulating children's exploratory activities, emphasizing the need for a comprehensive approach in arranging the spatial-material environment to fully support children's learning and development.