Social presence is difficult to achieve, but an imperative component of online learning. In this study, we investigated the effect of group size on students' perceptions of social presence in two graduate-level online courses, comparing small group versus whole class discussions. Our results indicated that when in small group discussions, students…

Examination of the nature and roles of two types of classroom talk that emerged from a bilingual multiethnic classroom focused on how students of differing language backgrounds participated in lessons, how teacher allocation of time affected students' learning, and how the latter related to teachers' attitudes and values in selecting and…

Examines how lower-track science students understand shifts in standard classroom discourse patterns. Finds that students insert struggles for social status into classroom arguments about scientific ideas, making it difficult to separate in a group discussion whether evidence or the social politics of the class convinces students to accept an…

Examines how two dimensions of a community of urban science student learners--social-organizational and intellectual-thematic--evolved and influenced each other. Discusses the reasons why the teacher and student succeeded in developing a functional community but did not quite succeed in developing shared understandings in science. Contains 34…