Purpose: The relationship between teacher talk and students' talk productivity is explored by two approaches: process-product, interpretive. Most studies used a process-product perspective by not considering the discursive compositions that may considerably modify the relations between a science teacher's talk interventions and students' talk…

The way teachers support students' Knowledge Building discourse may influence their subsequent discourse moves and emotions. However, in previous research on Knowledge Building, teacher scaffolding was rarely scrutinized, especially in offline Knowledge Building discourse; neither was how the support is associated with students' discourse moves or…

To strengthen the professional development of its science university professors with academic assignments in scientific careers, a Colombian higher education institution commissioned the design of a six-month training programme. The aim was to help professors change their teaching practices toward more student-centred models. The purpose of this…

Instructor discourse, defined as verbal interactions with students in the classroom, can play an important role in student learning. Instructors who use dialogic discourse invite students to develop their own ideas, and both students and the instructor share ideas in back-and-forth exchanges. This type of discourse is well-suited to facilitate…

Background: Discourse is the teacher's principal pedagogical tool in class. Studies stress the importance of research on discourse in science education and demonstrate its cruciality for understanding science. Purpose: The purpose of this study was to investigate characteristics of the classroom discourse in lessons on physics. Sample: Classroom…

Teachers' responses to student contributions in science classroom influence the resulting classroom interaction. To establish a heightened interaction, teachers need to use specific discursive moves. Using the notion of noticing as a lens, in this qualitative case study, I report on how the notion of noticing and responding with a suitable…

Science teachers' professional learning about student motivation can play a key role in developing their ability to nurture student motivation and cope with motivational challenges. To advance the understanding of how on-the-job discussions facilitate teacher learning about student motivation, this study investigated how elementary-school science…

Science-learning research has addressed the analysis of discourse dynamics in classes oriented towards student-centred learning environments. One aspect not much investigated is the progressiveness of that discourse. For progressiveness to exist, interactions must tend to be symmetrical and power imbalances in dialogue must be reduced to a…

Research Findings: Conversing abstract concepts boost children's language learning. Despite the numerous studies on the linguistic environment of early childhood education settings (ECE), most of this work disregards contextual factors that may influence abstract conversations and omits characteristics of children's verbal participation in these…

In this article, we focus on a set of remote activities regarding simulated juries, judges' evaluations, communication of verdicts, and a post-discussion conversation. These activities aimed to promote learning of the preservice teachers about the differences between remote and in-person teaching in a chemistry teaching methods course. The set of…

Instructor Talk--the noncontent language used by an instructor during class time--is likely to influence learning environments in science classrooms from the student perspective. Despite Instructor Talk being found in every science course thus far, investigations into student perceptions and memories of it are limited. We investigated to what…

In science classrooms, the epistemic practices of explanation building and argumentation often extend over multiple episodes of talk during a single lesson or across several lessons. Analyzing this kind of discourse requires a way to identify patterns that emerge over time to better understand student participation and how teachers support…

Communities develop social languages in which utterances take on culturally specific situated meanings. As physics students interact in their classroom, they can learn the broader physics community's social language by co-constructing meanings with their instructors. We provide an exposition of a systematic and productive use of idiosyncratic,…

Studies show that teachers and students use humour when communicating with each other in a science education context. This study investigates the use of humour during a collaborative inquiry laboratory task on an undergraduate chemistry course and an undergraduate physics course. Seven groups of students working on a collaborative inquiry task…

This study uses the Cultural-Historical Activity Theory (CHAT), to investigate the dialogic interaction between preservice science teachers (PSSTs) and mentor teachers (MTs). We focus on the cultural and historical nature of feedback by MTs while PSSTs are learning to teach climate change. The primary data was video recordings of feedback…