Language teaching ; Second language acquisition (language teaching) ; Zweitspracherwerb (Unterricht) ; Foreign language teaching ; DaF; Deutsch als Zweitsprache; German as a second language; DaZ; German as a foreign language ; Lehrmaterial; Teaching material ; Pragmalinguistics ; Praxiology; Action theory ; Pragmatische Kompetenz; Pragmatic competence; Communicative competence ; Classroom communication; Instructional communication ; Kulturvergleich; Language and culture ; Second language acquisition (pragm.) ; Zweitspracherwerb (pragm.) ; Interactionist hypothesis (second language acquisition) ; Conversational analysis (second language acquisition) ; German ; English
