The paper presents the guidelines for contrastive teaching of Polish to learners from East, that is, users East Slavic languages: Ukrainians, Belarusians and Russians. presentation fundamental assumptions teaching, which are advantageous in terms enhancing one’s linguistic competence, is accompanied by a short analysis content author’s two coursebooks, Po polsku bez błędu. Zbiór ćwiczeń z grama...

The lack of a sufficient amount of data tailored for a task is a well-recognized problem for many statistical NLP methods. In this paper, we explore whether data sparsity can be successfully tackled when classifying language proficiency levels in the domain of learner-written output texts. We aim at overcoming data sparsity by incorporating knowledge in the trained model from another domain con...