In the last decade, the issue of school education of children struggling with learning and behavioral disorder has come to the front in domestic as well as foreign pedagogies. The recognition and judgment of hyperactivity are characterized by uncertainty and extremes since increasingly all lively kids with excessive movement are labeled hyperactive. In turn, early detection of the disorders would enable children to get appropriate help. The following study consists of two main parts: a theoretical and a practical one. The practical part introduces concrete case studies assisting the early detection. The behavioral forms of three hyperactive children and their characteristic symptoms are explicated more broadly taking into consideration the family and school circumstances. It also aligns the forms of assistance and help in schools and gives concrete ideas and advice to teachers.