The content of this article emphasizes behavioral analysis in children with restraint in mental development (RDP). The number of families in disadvantaged situations is quite high. Poor living conditions, marked by tomorrow's insecurity, create tensions and quarrels between parents, which severely damages the family affective climate. Children from dysfunctional families or faced with economic problems difficult are tempted to escape from home and family to seek the security of the affective in the group of street, between the friends of the occasion, in the average micro-social dubious, and work on it and engaging in adventures that can easily degenerate into antisocial acts (destruction of property, theft, fighting, assault and robbery). Is removed in the out the relationship correlation between the peculiarities of the perception of intra-family relationships and contacts with those around you to the children for 15 years, notes that establish the relationship of the pupil with the teacher of physical education in the opinion of the students in the control groups and the experimental, the factors which positively influence on the process of physical education in the opinion of teachers (120 respondents), the results of the survey on the purpose of using the games dynamic in the lesson of physical education in the opinion of the teachers.