This article analyzes the problems of assimilation that are widely observed in the educational process and their causes. It is shown that factors such as the personal characteristics of the student, the quality of family upbringing, the material and technical base of the educational institution, the level of qualification of teachers and motivation have a direct impact on assimilation. It is also noted that as a result of assimilation, negative consequences arise, such as a decrease in the pace of scientific and social development of the individual, difficulties in social adaptation, a decrease in the quality of education and personnel potential. The article substantiates with examples the effectiveness of a person-centered approach, cooperation between parents and teachers, wide use of psychological support services, improvement of motivation methods and the use of innovative methods in the educational process.