GRAMMATICAL INTERFERENCE IN THE FIRST AND SECOND FOREIGN LANGUAGE: A RATIONAL APPROACH

Abstract. The article presents a methodology for overcoming grammatical interference in the context of learning multiple languages. This methodology is based on a rational approach and involves a comprehensive system combining learning content, principles, methods, techniques, tools, technologies, and diagnostic measures to achieve optimal results while minimizing effort. The proposed model follows an algorithm with key stages: identifying grammatical phenomena, analyzing their similarities and differences across languages, predicting difficulties, interpreting grammatical functions, systematizing knowledge, applying grammar in communication, and evaluating the effectiveness of learning outcomes. These tools are supplemented with a system of exercises and real-life communication tasks to address common and distinctive grammatical challenges. Experimental testing demonstrated that students significantly improved their practical mastery of German grammar. The study highlights the importance of psychological and pedagogical conditions, including the sequence of learning stages, rationalization tools, and real-life tasks, to support the learning process.