The article deals with the problems of teaching Polish as a Slavic language with the primary objective being to develop the competency of analyzing grammatical forms in a text and analyzing phonetic phenomena in comparison with the facts of the Old Church Slavonic and Russian languages. The study presents various aspects of using a poetic text in the study of Polish as a foreign language. The authors propose an example of a complex assignment on “Linguistic Analysis of a Poetic Text” based on a poem by the modern Polish poet Jakub Eker.