Instructional scaffolds may promote science learning, particularly for topics that are controversial. Scaffolding may also need to be autonomy supportive, particularly for adolescents, and designed to facilitate scientific discourse and agency. The purpose of the present study was to investigate differences in middle school students' discourse and…

Group work is commonly adopted in university science laboratories. However, student small-group discourse in university science labs is rarely investigated. We aim to bridge the gap in the literature by characterizing student discourse group roles in inquiry-based science labs. The instructional context for this study was a summer program hosted…

Inquiry-based science instruction has been advocated for decades. However, the implementation of inquiry teaching and learning in everyday classrooms is rather limited due to various factors. Previous research investigated implementations of inquiry-based teaching at the activity level with self-reported methods. However, little is known about how…

This study presents an in-depth exploration of the types of discursive functions of teacher questioning and the potential cognitive correspondences embedded in the questioning. The participants were a science teacher and his class of 26 sixth-grade students who were engaged in an immersion science inquiry activity. The major data source was a…

Teacher-student discourse continues to be teacher-centred even though researchers and reform documents have recommended changes toward increased levels of student-centred discourse. In science education this situation is paralleled by effort to make scientific inquiry more student-centred. The purpose of this study was to investigate how discourse…

The language of science, which emphasizes reasoning about the causes and conditions of scientific phenomenon and use of visuals to convey information, can be difficult for young readers and writers without a lot of teacher scaffolding (Pappas and Varelas 2009). It is important that teachers understand these linguistic requirements to support…

This article addresses the issue of the level of complexity of practical work in science curricula and is focused on the discipline of Biology and Geology at high school. The level of complexity is seen in terms of the emphasis on and types of practical work and, most importantly, in terms of its level of conceptual demand as given by the…

This research investigated the emergent discursive modes and their pedagogical functions found in model-based inquiry (MBI) science classrooms. A sample of four high school physics classrooms was video-recorded and analysed using a newly established discourse mode analysis framework. Qualitative methods were employed to identify the most salient…

This study examines the impact of "Disaggregate Instruction" on students' science learning. "Disaggregate Instruction" is the idea that science teaching and learning can be separated into conceptual and discursive components. Using randomly assigned experimental and control groups, 49 fifth-grade students received web-based…

To test whether epistemically unproblematic ways of thinking and talking about science could be transformed during preservice teacher training, we designed a system of learning activities based on a set of "heuristics for progressive disciplinary discourse" (HPDD). The HPDD outline six design principles of learning environments where the aim is to…

This paper introduces the concept of representational guidance for collaborative learning discourse and summarizes the results of two studies: a laboratory study investigating differences in discourse process and a classroom study investigating differences in products of the investigations. The laboratory study compared three representational…

Presents the results of a study analyzing students' gestures and scientific discourse by supporting three assertions about the relationship between laboratory experiences, gestures, and scientific discourse. Discusses the implications for laboratory experiments which students should attempt to explain while still in the lab rather than afterwards…

Discusses the language practices of introductory biology courses, the means by which knowledge is constructed in such courses, and how it may exclude female students. Provides student responses to writing tasks in the biology class, and analyzes those responses. Shows how male and female students differ in their responses. (HB)

Disputes the claim that narrative writing is of lesser value than expository forms, and argues that narrative holds great potential for use in writing curricula. Describes a summer science institute for minority students in which narrative was utilized. (HB)

Proposes that language awareness cannot be fully developed if it rests on a view of language from within. Suggests that language is always one of a number of semiotic modes in use in any act of communication, and that language may not be central mode. To get sense of modes of communication involved, a condensed account of a science lesson on plate…