This study describes the design and implementation of a usage-based and corpus-based advanced German grammar course. Teaching materials for the course included DWDS, or "Digitales Worterbuch der deutschen Sprache": a large, representative, free and publicly available corpus of contemporary German texts. The article outlines specific theoretically informed principles for course design and presents a logical progression of corpus-based grammar-teaching activities as used in this course. It also reports participants' post-course reactions which were very positive. The article contains practical recommendations for educators interested in trying out corpus-based activities for teaching German grammar at different proficiency levels as well as to different participant groups. Furthermore, it promotes a more holistic perspective toward grammar as a meaning-making resource compatible with innovative approaches to grammar pedagogy. (Contains 4 figures and 9 footnotes.)