The article deals with the problem of learning Bulgarian language in a bilingual environment. The object of this research is the process of teaching Bulgarian language in elementary school. The purpose of the article is to analyze the study of Bulgarian language in the village Albota de Sus. Particular attention is given to the examination of two groups of pupils from second form. The preliminary survey conducted among the elementary school teachers and teachers of Bulgarian language demonstrated that they experience certain difficulties in organization of methodical work on implementation of interconnected teaching of languages. The scientific novelty consists in identification of peculiarities of the formation of metalingual skills among bilingual children, as well as main difficulties associated with learning several languages in elementary school.