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We set out to understand how different instantiations of inquiry emerged in two different years of one elementary teacher's classroom. Longitudinal observations from Mrs. Charles' 5th grade science classroom forced us to carefully and deliberately consider who exactly was responsible for the change in the class activities and norms. We provide empirical evidence to show how a focus on the teacher can easily overlook the complex dynamics of the classroom. The data reveal that students had a substantive and generative role in the class's arrival at the different instantiations of scientific inquiry—the nature and form of inquiry—that were constructed each year. We argue that, in an environment where a teacher carefully attends and responds to student thinking, the nascent resources students have for reasoning about phenomena can affect not only the conceptual ideas that emerge, but also influence what inquiry activities or practices become established as normative and productive over time. Our work with Mrs. Charles illuminates an important methodological concern with research on teacher development as well as the construct of teacher learning progressions; research accounts that focus primarily on the teacher may overlook the classroom norms that are negotiated between teacher and student, and thereby provide an incomplete portrayal of the teacher's activity within one classroom and the teacher's progress across multiple years. © 2012 Wiley Periodicals, Inc. J Res Sci Teach 49: 429–464, 2012  相似文献   

3.
This research integrates theory building, technology design, and design-based research to address a central challenge pertaining to collective inquiry and knowledge building: How can student-driven, ever-deepening inquiry processes become socially organized and pedagogically supported in a community? Different from supporting inquiry using predesigned structures, we propose reflective structuration as a social and temporal mechanism by which members of a community coconstruct/reconstruct shared inquiry structures to shape and guide their ongoing knowledge building processes. Idea Thread Mapper (ITM) was designed to help students and their teacher monitor emergent directions and co-organize the unfolding inquiry processes over time. A study was conducted in two upper primary school classrooms that investigated electricity with the support of ITM. Qualitative analyses of classroom videos and observational data documented the formation and elaboration of shared inquiry structures. Content analysis of the online discourse and student reflective summaries showed that in the classroom with reflective structuration, students made more active and connected contributions to their online discourse, leading to deeper and more coherent scientific understandings.  相似文献   

4.
The purpose of this study was to investigate the various roles that early elementary teachers adopt when questioning, to scaffold dialogic interaction and students’ cognitive responses for argumentative practices over time. Teacher questioning is a pivotal contributing factor that shapes the role teachers play in promoting dialogic interaction in argumentative practice and that different roles serve different functions for promoting students’ conceptual understanding. The multiple-case study was designed as a follow-up study after a 4-year professional development program that emphasized an argument-based inquiry approach. Data sources included 30 lessons focusing on whole class discussion from three early elementary teachers’ classes. Data were analyzed through two approaches: (1) constant comparative method and (2) enumerative approach. This study conceptualized four critical roles of teacher questioning—dispenser, moderator, coach, and participant—in light of the ownership of ideas and activities. The findings revealed two salient changes in teachers’ use of questions and the relationships between teachers’ question-asking and students’ cognitive responses: (1) teachers increasingly used multiple roles in establishing argumentative discourse as they persistently implemented an argument-based inquiry approach, and (2) as teachers used multiple roles in establishing patterns of questioning and framing classroom interactions, higher levels of student cognitive responses were promoted. This study suggests that an essential component of teacher professional development should include the study of the various roles that teachers can play when questioning for establishing dialogic interaction in argumentation and that this development should consist of ongoing training with systematic support.  相似文献   

5.
Interest in inquiry-based science education (IBSE) often pays little heed to the complex power relations that exist within classrooms. A common obstacle to inquiry is that it strongly diverges from current classroom culture and hence, is outside the sphere of teachers' and students' experiences. Teachers and students bring expectations to the classroom that are entrenched in traditional practices and influenced by dynamics of power that exist within all teacher–student relationships. This study, which emerged during a wider study of the use of a Virtual Chemistry Lab in supporting IBSE, explores how classroom discourse constructs and maintains power relations that either stifle or facilitate inquiry-based approaches in two science lessons. Research methods included teacher interviews, student focus groups, video-recorded lessons, and student self-assessments. Findings indicate distinctive features of power inside the classroom that impact on inquiry-based instruction, such as predominant teacher monitoring on task completion over task understanding, lack of student engagement in ownership of scientific ideas, and prevailing norms of what effective teacher questioning is. We discuss implications for IBSE change efforts, highlighting that well-established power relations currently represent an important limiting factor in the capacity of teachers' IBSE implementation.  相似文献   

6.
Building on the ‘questioning-based discourse analytical’ framework developed by Singapore-based science educator and discourse analyst, Christine Chin, this study investigated the extent to which fifth-grade science teachers' use of questions with either an authoritative or dialogic orientation differentially restricted or expanded the quality and complexity of student responses in the USA. The author analyzed approximately 10 hours of classroom discourse from elementary science classrooms organized around inquiry-based science curricula and texts. Teacher questions and feedback were classified according to their dialogic orientation and contextually inferred structural purpose, while student understanding was operationalized as a dynamic interaction between cognitive process, syntacto-semantic complexity, and science knowledge type. The results of this study closely mirror Chin's and other scholars' findings that the fixed nature of authoritatively oriented questioning can dramatically limit students' opportunities to demonstrate higher order scientific understanding, while dialogically oriented questions, by contrast, often grant students the discursive space to demonstrate a greater breadth and depth of both canonical and self-generated knowledge. However, certain teacher questioning sequences occupying the ‘middle ground’ between maximal authoritativeness and dialogicity revealed patterns of meaningful, if isolated, instances of higher order thinking. Implications for classroom practice are discussed along with recommendations for future research.  相似文献   

7.
《学习科学杂志》2013,22(3):379-428
There is increasing agreement among those who study classrooms that learning is likely to be most effective when students are actively involved in the dialogic coconstruction of meaning about topics that are of significance to them. This article reports the results of an extended collaborative action research project in which teachers attempted to create the conditions for such dialogue by adopting an inquiry approach to the curriculum. A quantitative comparison between observations made early and late in the teachers' involvement in the project showed a number of significant changes in the characteristics of teacher–whole-class discourse, with a shift toward a more dialogic mode of interaction. Nevertheless, the initiation-response-follow-up (IRF) genre continued to be pervasive. Despite this, when the same observations were examined qualitatively, there was clear evidence of an increase over time in the teachers' adoption of a "dialogic stance." The article concludes with a consideration of the relationship between the choice of discourse formats and the enactment of a dialogic stance.  相似文献   

8.
余婷 《海外英语》2012,(9):134-136
会话分析被认为是话语分析的一个重要部分,而课堂教学研究的一个重要分支是课堂会话分析。该文以中外学者会话分析研究理论为依据,通过描述性地研究高职英语专业综合英语教学中的典型的课堂会话,不仅仅限于对教师话语的分析,同时结合外语教学以学习者为中心,教师在教学过程中处于主导地位这一现代外语教学理念,探索高职综合英语课堂教师话语的适当性及其对促进课堂师生交流的意义,旨在为外语教学提供借鉴。  相似文献   

9.
In this article, we examine the oral and written discourse processes in a high school physics class and how these discourse processes are related to sociocultural practices in scientific communities. Our theoretical framework is based on sociological and anthropological studies of scientific communities and ethnographies of classroom life. We review the use of discourse analysis as a methodological orientation in science education and provide a logic‐of‐inquiry framing how we used discourse analysis in our ethnographic research. Our ethnographic analysis showed that, through students' participation in creating scientific papers on the physics of sound, their appropriation of scientific discourse was related to the framing activities of the teachers and the social practices established over time in the classroom. Our textual analysis of the student papers focused on how they used evidence to make claims. We explore the lessons learned from participating in the classroom of these students. © 1999 John Wiley & Sons, Inc. J Res Sci Teach 36: 883–915, 1999  相似文献   

10.
Although research has come to recognize the importance of studying classroom-based student–teacher discourse in science, the emphasis remains largely on teachers' abilities to ask questions and provide students with feedback, or on students' abilities to ask questions or engage in argumentative discourse. Consequently, little research has focused on the discourse elements relating to teacher–student discourse interactions. In this article, we argue for a shift of research attention toward describing what the teacher is responding to (Identification of student inquiry), the process of deciding how to respond (Interpretation—Evaluation of student inquiry), and how the teacher is responding (Response to student inquiry). We propose a new methodological approach for studying teacher discourse, which involves a framework we developed while analyzing 1,385 minutes of fifth grade, whole-class science conversations covering a 2-year period and facilitated by an experienced science teacher. Then, as a case in point, we applied our framework to the teacher discourse data of the study, aiming to show that the framework can be a useful tool for examining how a teacher supports students' inquiry.  相似文献   

11.
We investigated how Chinese physics teachers structured classroom discourse to support the cognitive and social aspects of inquiry-based science learning. Regarding the cognitive aspect, we examined to what extent the cognitive processes underlying the scientific skills and the disciplinary reasoning behind the content knowledge were taught. Regarding the social aspect, we examined how classroom discourse supported student learning in terms of students' opportunities to talk and interaction patterns. Our participants were 17 physics teachers who were actively engaged in teacher education programs in universities and professional development programs in local school districts. We analyzed one lesson video from each participating teacher. The results suggest both promises and challenges. Regarding the cognitive aspect of inquiry, the teachers in general recognized the importance of teaching the cognitive processes and disciplinary reasoning. However, they were less likely to address common intuitive ideas about science concepts and principles. Regarding the social aspect of inquiry, the teachers frequently interacted with students in class. However, it appeared that facilitating conversations among students and prompting students to talk about their own ideas are challenging. We discuss the implications of these findings for teacher education programs and professional development programs in China.  相似文献   

12.
Studies have documented the importance of dialogic classroom discourse for supporting academic outcomes such as reading comprehension and vocabulary development. This study examines the relationship between teacher talk during whole-classroom discussions in 42 classrooms and post-discussion persuasive essays from students in grades four through seven (n = 471). Teacher talk was coded by type of question (contestable, semi-open, or quiz-like) and teachers' follow-ups (prompting, pressing for reasoning, active listening), and further categorized as indicating either high or low levels of dialogic talk. Multilevel modeling that accounts for student participation rate, discussion topic, and students' demographic information shows that high dialogic teacher talk positively predicts students’ persuasive essay scores, while low dialogic teacher talk negatively predicts their scores. The study supports existing hypotheses about the role of teacher dialogic talk in whole-class settings.  相似文献   

13.
Over the last two decades, science educators and science education researchers have grown increasingly interested in utilising insights from the sociology of scientific knowledge (SSK) to inform their work and research. To date, researchers in science education have focused on two applications: results of sociological studies of science have been used to define new areas of content, generally referred to as Nature of Science (NOS). This has included research into students’ understanding of the NOS, teachers’ understanding of the NOS, and inclusion (or exclusion) of NOS themes in curricula. A second vein of inquiry has been investigations that consider the classroom as a microcosm of scientific discourse and inquiry. Such research has included investigations of student‐to‐student and student‐to‐teacher interactions. In this paper, we present a third application for educational research – the investigation of teacher knowledge and practice as sociological phenomena. In addition to supporting scholarly research, we believe it can be a useful tool for illuminating the complexities of teaching that needs to be taken into account by policy makers and practitioners. In this paper, we provide a thematic review of concepts from the sociology of scientific knowledge, and their application to a case of teacher work.  相似文献   

14.
The purpose of this study was to examine how lower track science students would understand shifts in standard classroom discourse patterns. The researcher videotaped his daily efforts to renegotiate the lower track classroom environment to become more representative of a scientific community. This paper is an analysis of the implicit obstacles inherent in shifting class discussions to classroom arguments examining tentative hypotheses. Students have inserted struggles for social status into classroom arguments about scientific ideas making it difficult to separate in a group discussion when the evidence convinced a student or whether the social politics of the class had persuaded her. As a result of changing classroom rules for participation, engagement, and collaborative inquiry, students' abilities to argue scientifically were changed. Despite these shifts students continued to insert their own interpretations of argumentation, social norms, and strategies for active re-negotiation of the teacher's agenda for the construction of scientific classroom discourse.  相似文献   

15.
Peer feedback is an inherent feature of classroom collaborative learning. Students invariably turn to their peers for feedback when carrying out an investigative task, and this feedback is usually implicit, unstructured and may positively or negatively influence students’ learning when they work on a task. This study explored the characteristics of verbal peer feedback during a collaborative investigative chemistry task involving New Zealand Year 13 students. During the planning stage of the students’ investigation, the discussions of five pairs of students were recorded and then transcribed. Analysis of transcribed verbal data focused on interactions that involved peer feedback along two dimensions, interactive/non-interactive and dialogic/authoritative (Mortimer and Scott, 2003). The findings indicated that although students adopted a predominantly interactive/authoritative communicative approach, with peer feedback as confirmation or evaluation, they are also capable of a more interactive/dialogic exchange, characterised by elaborative peer feedback. We discuss how this dialogic perspective on peer feedback provides an alternative approach to the analysis and study of student–student interactions during science investigations. The findings should be interpreted in light of the limitations in terms of sample size, grouping and specificity of the coding scheme. Implications for teacher practice are discussed in relation to facilitating peer feedback discourse in the science classroom.  相似文献   

16.
A dominant discourse on “scaling-up” small-scale innovations based on a limited number of successful classroom trials pervades the educational literature. We view this discourse as insensitive to the professional work of teachers and the human side of school change. Our research investigated how teacher professional development could be conceived and conducted to support take up of digital game-based learning in the context of a 3-week social studies unit on governance and citizenship. Students played a mobile game in their own time. In the classroom, teachers enacted dialogic pedagogy to facilitate students’ meaning-making of their gameplay experience. Our findings indicate that teacher identity, constituted by their interwoven knowing–doing–being–valuing is central to any effort to scale pedagogical and technological innovation. We modified our original model for the appropriation of innovation uptake by teachers to one that places teacher identity as the centrepiece of the model and cornerstone in “shifting” teacher practice.  相似文献   

17.
The purpose of this study was to examine the effects of open inquiry instruction with low achieving, marginalized high school students. Students with long histories of scholastic failure were asked to participate in question generation, experimental design, and argument construction as a part of their General Science course instruction. Videotapes were collected from daily science instruction, and entrance and exit instruction interviews were conducted using identical open‐ended problems. From this dataset, comparisons were made between students' entrance and exit interview responses representing change over time. Shifts in student responses coincided with renegotiated classroom norms for scientific discourse. Results are reported for five students in the form of assertions. Students' arguments were observed to shift toward those more consistent with the nature of the scientific arguments including: (1) students' tentativeness of knowledge claims, (2) students' use of evidence, and (3) students' views regarding the source of scientific authority. Implications are discussed for research and practice in light of the national standards' call for universal scientific literacy. © 2000 John Wiley & Sons, Inc. J Res Sci Teach 37: 807–838, 2000  相似文献   

18.
Phenomena-based approaches have become popular for elementary school teachers to engage children's innate curiosity in the natural world. However, integrating such phenomena-based approaches in existing science courses within teacher education programs present potential challenges for both preservice elementary teachers (PSETs) and for laboratory instructors, both of whom may have had limited opportunities to learn or teach science within the student and instructor roles inherent within these approaches. This study uses a convergent parallel mixed-methods approach to investigate PSETs' perceptions of their laboratory instructor's role within a Physical Science phenomena-based laboratory curriculum and how it impacts their conceptual development (2 instructors/121 students). We also examine how the two laboratory instructors' discursive moves within the laboratory align with their's and PSETs' perceptions of the instructor role. Qualitative data includes triangulation between a student questionnaire, an instructor questionnaire, and video classroom observations, while quantitative data includes a nine-item open response pre-/post-semester conceptual test. Guided by Mortimer's and Scott's analytic framework, our findings show that students primarily perceive their instructors as a guide/facilitator or an authoritarian/evaluator. Using Linn's knowledge integration framework, analysis of pre-/post-tests indicates that student outcomes align with students' perceptions of their instructors, with students who perceive their instructor as a guide/facilitator having significantly better pre-/post-outcomes. Additional analysis of scientific discourse from the classroom observations illustrates how one instructor primarily supports PSETs' perspectives on authentic science learning through dialogic–interactive talk moves whereas the other instructor epistemologically stifles personally relevant investigations with authoritative–interactive or authoritative–noninteractive discourse moves. Overall, this study concludes by discussing challenges facing laboratory instructors that need careful consideration for phenomena-based approaches.  相似文献   

19.
The theoretical construct of teacher noticing has allowed mathematics teacher educators to examine teacher thinking and practice by looking at the range of activities that teachers notice in the classroom. Guided by this approach to the study of teacher thinking, the central goal of this exploratory study was to identify what prospective science teachers notice when evaluating evidence of student understanding in another teacher's inquiry‐based unit. Our results are based on the qualitative analysis of 43 prospective teachers' evaluations of assessment evidence presented to them in the form of a video case and associated written artifacts. Analysis of our data revealed two major categories of elements, Task‐General and Task‐Specific, noticed by our study participants. Task‐General elements included attention to learning objectives, independent student work, and presentation issues and they often served to guide or qualify the specific inquiry skills that were evaluated. Task‐Specific elements included the noticing of students' abilities to perform different components of an investigation. In general, study participants paid attention to important general and specific aspects of student work in the context of inquiry. However, they showed preferential attention to those process skills associated with designing an investigation versus those practices related to the analysis of data and generation of conclusions. Additionally, their interpretations of assessment outcomes were largely focused on the demonstration of general science process skills; much less attention was paid to the analysis of the epistemological validity or scientific plausibility of students' ideas. Our results provide insights into the design of meaningful learning experiences for prospective teachers that elicit, challenge, and enrich their conceptions of student understanding in the context of inquiry. © 2013 Wiley Periodicals, Inc. J Res Sci Teach 50:189–208, 2013  相似文献   

20.
In recent years, a discourse is emerging in education that emphasises the study of the impact of in-service teacher education on student outcomes (more often than not student outcomes are seen in the form of test scores of academic achievement). Implicit in this discourse is the view that the impact of in-service teacher education is directly observable on students' outcomes, suggesting that the variables in a school or classroom are connected in some kind of a causal link. However, it is problematic to view variables in a social setting such as a school or a classroom as being in causal relationships because social settings are complex so that it is not possible to control the variables or the outcomes. Hence, one cannot convincingly study the outcomes without also studying the process and its complexity. In this article, I describe an action research study undertaken to study the impact in the classroom, of new teaching strategies introduced as part of an in-service teacher education programme in Karachi, Pakistan. By describing this study I mean to suggest that action research is an appropriate methodology to study the impact of in-service teacher education.  相似文献   

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