Evaluation criterion (language teaching) ; English as a second language; ESL; TESOL ; Reading instruction (second language) ; Discourse analysis (pragm.) ; Diskursgrammatik; Gesprächsanalyse; Konversationsgrammatik; Conversational analysis (pragm.) ; Classroom communication; Instructional communication ; Anweisungen; Commands; Directives ; Evaluation criterion (language effects) ; Teacher talk; Teacher's language ; English (American) ; USA (English language in the) ; USA (engl. Sprache in den) ; English in the USA; Englisch in den USA; American English