Katharina Hirt (PhD, Johannes Gutenberg Universität—Mainz, in German as a Foreign Language) is teacher for German as a Foreign Language at Universität—Koblenz and teacher for Inter...view moreKatharina Hirt (PhD, Johannes Gutenberg Universität—Mainz, in German as a Foreign Language) is teacher for German as a Foreign Language at Universität—Koblenz and teacher for International Summer School: German (and) Theology at Johannes Gutenberg Universität—Mainz. She has taught and been developing this material for over six years.view less