The period of childhood is characterized by many developmental changes in the field of physical development, motor skills, emotions, cognition and speech. As soon as a child is born, it begins to acquire certain knowledge. Even though certain changes in development can occur in all children at approximately the same time, most changes occur on an individual basis. This way of thinking has not always been relevant. In the past, it was thought that all children develop according to developmental milestones, and learn only through direct teaching at a certain time. This is the way children were treated in educational institutions at that time. Frontal ways of working, led by educators, were used and no flexibility in the process of upbringing and education was accepted. No importance was given to the impact the environment has on children's development, so all rooms were adapted for adults instead of children. Contemporary research has shown that such a strictly defined approach does not correspond to the nature of the way children learn, which is spontaneous and holistic. Through various studies, scientists have come to the conclusion that the environment in which a child resides significantly affects its overall development. This environment means the spatial-material, temporal and socio-pedagogical organization. Each of these environmental determinants leaves a certain impact on the child. In order to cater to the individual needs of the child as much as possible, and thus achieve the highest overall quality development, learning activities are divided into activity centers. Activity centers enable the child to independently individualize the activities they will engage in according to their own needs and interests. All the material located in the aforementioned centers must be carefully designed and organized in such a way as to encourage the development of certain areas or more of them at the same time. The preschool teacher, who also plays a very important role in the child's environment, is in charge of designing such a stimulating spatial and material environment.