complex and differentiated nature of children’s development. Each child has a unique pattern of development of higher cognitive functions. They may demonstrate outstanding progress or exceptional achievement in a particular area, such as logical reasoning, spatial reasoning, or creative skills, while experiencing difficulties or delays in other areas, such as language, attention, or emotional regulation. This discrepancy between strengths and weaknesses reflects the heterogeneous nature of development and emphasizes that development is not always a linear or harmonious process, but rather a dynamic one, influenced by numerous biological, neurological, psychological, and environmental factors. From this perspective, understanding heterogeneous neuropsychological development helps explain individual differences between children and highlights the need for flexible diagnostic and therapeutic approaches that take these characteristics into account, support strengths, and offer strategies to compensate for weaknesses. Recognizing this aspect of development allows therapists, teachers, and parents to view the child as a unique entity in their developmental model, providing a more supportive environment that helps the child reach his or her full potential.