Natalya Voloshina

Currently, there is a rapid increase in speech pathology for many reasons. Enough common speech disorder in children of preschool age on psychological and educational classification is the general underdevelopment of speech that makes our actual topic. The most important condition of social adaptation of such children in the preschool years is a sufficient level of speech development, providing further assimilation of the curriculum, the successful mastery of orthographically correct letter, which is impossible without the formation of a high-level language, including morphological generalizations. The acquisition of the morphological system of language is closely related to the ability to use word-formation mechanisms, which are based on the ability to analyze, synthesize, to differentiate the linguistic units in their meaning and sound structure. Mastering the regularities of word formation on a practical level, the ability to isolate, differentiate and synthesize morpheme, identify common values derivational morpheme is a requirement of vocabulary enrichment at the expense of derivative words, mastery of the grammatical system of language, the formation of the prerequisites orthographically correct writing.