Based on a variety of recorded classroom data, this article focuses on language teachers' classroom explanations and suggests that teacher talk in the form of explanations can be a source of valuable language input for learners. The article emphasizes that in language teaching, explaining is a central and difficult part of any teacher's work. (38…

Investigates teacher reformulation of student talk in order to determine the manner in which teachers affect student meaning and expression. Findings indicate that reformulation is a device used by teachers to control classroom dialog and that teachers disproportionately perform the language functions most commonly associated with higher-order…