Composition (teaching of) ; Lehrplan; Syllabus; Curriculum research ; ESP; English for academic purposes; EAP ; Second language acquisition (language teaching) ; Zweitspracherwerb (Unterricht) ; Foreign language teaching ; Wortschatz (Sprachunterricht) ; Lernwortschatz; Vocabulary teaching ; Sampling; Language corpus; Sprachkorpus; Datensammlung; Data collection; Textkorpus (method.) ; Text corpus (method.) ; Corpus linguistics ; Academic language; Scientific language ; Social constructionism; Sozialkonstruktivismus; Constructivism (philosophy)