Second language acquisition (language teaching) ; Zweitspracherwerb (Unterricht) ; Foreign language teaching ; Role play (language teaching) ; Classroom communication; Instructional communication ; Second language acquisition (pragm.) ; Zweitspracherwerb (pragm.) ; Interactionist hypothesis (second language acquisition) ; Conversational analysis (second language acquisition) ; Zweitspracherwerb (Textproduktion) ; Second language acquisition (text production) ; Text production (second language acquisition) ; Vermeidungsstrategie (Zweitspracherwerb) ; Avoidance strategy (second language acquisition) ; Ersatzstrategie (Zweitspracherwerb) ; Compensatory strategy (second language acquisition) ; Speaker strategy (second language acquisition) ; Collaborative text production; Coauthorship; Text production (cooperative) ; Spanish