Metaphors are recognized as bridging scientists' challenges in communication with the public. In mathematics, however, which often involves abstract concepts and relations, less attention has been paid to the role of metaphors in public communication. In this article we examine the metaphors appearing in the discourse of 10 mathematicians in five…

The aims of this article are to address how learning is constituted and can be studied as a phenomenon in interaction and to discuss how teaching and learning are related. Theoretically, the article argues for and discusses constraints and affordances for relating sociocultural understandings of learning as changing participation to "conversation…

This article describes how students in the second language classroom claim incipient speakership and establish recipiency with a co-participant before the turn is properly initiated. The resources used by the incipient speaker include in-breaths and body movements. The article shows that when the teacher's turn is designed as not to pre-establish…

We annotated transcripts of human tutoring dialogue for the purpose of constructing a dialogue-based intelligent tutoring system, CIRCSIM-Tutor. The tutors were professors of physiology who were also expert tutors. The students were 1st year medical students who communicated with the tutors using typed communication from separate rooms. The tutors…