Evaluation criterion (language teaching) ; Technical language (teaching of) ; Français fonctionnel; Teaching of technical language ; DaF; Deutsch als Zweitsprache; German as a second language; DaZ; German as a foreign language ; Wortschatz (Sprachunterricht) ; Lernwortschatz; Vocabulary teaching ; Sampling; Language corpus; Sprachkorpus; Datensammlung; Data collection; Textkorpus (method.) ; Text corpus (method.) ; Corpus linguistics ; Academic language; Scientific language ; Technical vocabulary ; German