The manual presents material that allows you to explore the mental characteristics of the personality of a child entering the first grade: the level of orientation in the environment; having a desire to go to schools; motivation of the exercise; "type of school maturity"; the level of development of the prerequisites for educational activities, visual-figurative thinking, small movements of the hands; hand preference; it is possible to draw up documentation based on the results of the study (protocols for methods, protocol of individual psychological examination), as well as recommendations for organizing individual work with psychologically disadvantaged children to prevent unfavorable options for their mental development during first grade education.