[Experimental instruction of children with retarded mental development (organization and preliminary results)].

The paper deals with psycho-pedagogical and clinical characteristics of children with mental retardation, who are referred for studying to specialized experimental schools. The children live under the conditions which provide normaliziation of their state by pedagogical and medical correctional methods, and successfully master the programmes of a public school. More than half of the children who overcome the retardation can be transferred to a public school after 4 years of correctional teaching.