Аннотация
In article the procedure of selection of thematic lexicon in the educational purposes is considered. For the solution of this methodical task the list of the most important subjects is selected; the classification scheme of thematic units is constituted, thematic lexicon on theme groups according to their internal “subordination” is located: hierarchy, kernel/periphery, genus-species relations; the thematic dictionary taking into account concepts of different types by means of which the reflection of the world in consciousness of the trainee is filled. The author marked out the cognitive and thematic principles of selection of a basic word stock for Kazakh pupils. Special attention is paid to consideration of the all-didactic, linguistic, lexicographic, psychophysiological and methodical principles of selection of lexical material. The thesaurus realizes reflective and accumulative functions of language and represents knowledges of the world therefore the training in lexicon systematized in the form of a picture of the world is urgent.