The stages of development in children represent different periods in which children grow, develop, mature, and acquire various skills. If we perceive development as a serie s of changes in which individual ontogenesis represents the resolution of developmental tasks, then developmental normality entails successful integration of biological, social, emotional, and cognitive achievements that contribute to later adaptation. On the other hand, abnormalities or pathological phenomena involve a lack of integration among different domains or the development of psychological mechanisms that lead to future maladaptation. In order to recognize and understand possible developmental devi ations, it is important to gain insight into all aspects of a child's development, starting from early preschool age, with the involvement of parents and educators playing a crucial role. Specifically, educators can identify and comprehend potential develo pmental difficulties and guide parents and the child toward seeking professional developmental assessment.. With a multidisciplinary approach, it is possible to obtain a lot of data about the child's development, where in addition to the educator's assessm ent of developmental specifics, the most commonly used psychological tests can be singled out are The developmental test Čuturić and Wechler's developmental assessment scale. The assessment of a child's development should be approached holistically, takin g into account various developmental aspects, contextual factors, and individual characteristics of the child. The entire approach, including identifying difficulties, the assessment process itself, and interventions, is crucial to ensuring the best outcom e for the child.