Gavrylova N. The specialties of the assimilation of the mathematical knowledge, skills and habits by the junior pupils with violation of speech development.

The theses is devoted to the exposure of the specialties of mastering the mathematical material by the junior pupils with violation of speech development (VSD) and basing the ways to prevent the difficulties in learning this discipline. The analyses of the psychological mechanisms of the forming mathematical knowledge, skills and habits process in the normal ontohenesys process is represented in the theses and factors which learn the possibility to children's mathematics assimilation are characterized; the scientific conception about the specific character of the children's with VSD mathematical activity development is supplemented and extended. The levels of the junior pupils' assimilation of the mathematical knowledge, skills and habits are determined on the bases of the cultivated diagnostic task complex; the types of difficulties which appear in these pupils at the time of mathematics assimilation are characterized and systematized; the typical mistakes of the children with VSD in process of doing mathematical tasks are exposed; the specialties of the pupils' with VSD cognitive activity development are characterized and the dependences between it's different parts are exposed. The causes of the appearing difficulties in the mathematical material assimilation - backwardness of the cognitive activity in junior pupils' - is exposed. The ways of prevention appearing difficulties in mathematical knowledge, skills and habits assimilation of pupils with VSD are based.