Zeitgemäße Lehrwerke unter der Lupe: Potentiale (nie) alternder Kursbücher im DaF-Unterricht

In the present study, several educational systems of German as a foreign language are considered based on different criteria. They serve as a tertium comparisonis in didactic analysis. The selected teaching systems of German as a foreign language represent their time and when choosing them, it is crucial that they are composed by the same author team and published by the same publishing house. Moreover, the language level to be reached after the respective training course with all of them is the same, namely A1. Textbooks are analyzed in chronological order, ie presented according to when they were approved by the Ministry of Education and Science of Bulgaria. The aim of the research is to prove that not only the current vocabulary, the degree of digitization and interaction, but also the choice of topics, the use of appropriate methods, and the impulses for differentiated work contribute to the effectiveness and adaptability of the given foreign language teaching system. One of the important conclusions of the article is precisely that the potential of a foreign language teaching system can be developed over time if from the beginning a concept that is open to change and updating is laid down and applied.