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Given reform recommendations emphasizing scientific inquiry and empirical evidence pointing to the difficulties beginning teachers face in enacting inquiry-based science, this study explores a well-started beginning elementary teacher’s (Sofia) beliefs about inquiry-based science and related instructional practices. In order to explore Sofia’s beliefs and instructional practices, several kinds of data were collected in a period of 9 months: a self-portrait and an accompanying narrative, a personal philosophy assignment, three interviews, three journal entries, ten lesson plans, and ten videotaped classroom observations. The analysis of these data showed that Sofia’s beliefs and instructional practices were reform-minded. She articulated contemporary beliefs about scientific inquiry and how children learn science and was able to translate these beliefs into practice. Central to Sofia’s beliefs about science teaching were scientific inquiry and engaging students in investigations with authentic data, with a prevalent emphasis on the role of evidence in the construction of scientific claims. These findings are important to research aiming at supporting teachers, especially beginning ones, to embrace reform recommendations.  相似文献   

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Although it is clearly established that an effective instructional systems design (ISD) process requires evaluation, previous studies provide evidence to show that everyday practices of instructional designers do not include sufficient or appropriate evaluation. Research suggests that organizational barriers and lack of support for evaluation are a leading cause of its inadequate usage. Without appropriate and sufficient evaluation practices, it is impossible to maintain the integrity of the systematic quality of ISD and threatens to undermine the entire concept of instructional design. This article first examines the purposes and importance of evaluation. Second, it reviews research that describes the less‐than‐optimal performance of practitioners as it relates to conducting evaluation, along with identifying causes for this performance deficiency. Third, it proposes using a model of human performance technology for improving the environment leading to implementation of evaluation.  相似文献   

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This paper investigates the impact of publication pressure on the ethics and the scientific integrity in the domain of mathematics and of the arts. Both research fields are specific in their methodology, being that they do not start from a classical hypothesis and researchers in these areas are not knowing what the outcome will be. The research design is open, and creativity is a main part of the research investigation. Both research fields do not rely on empirical cases nor on data collection or data handling. This could be a reason why mathematics and arts seem to be less subject to scientific misconduct. After presenting the (inter)national regulations on ethics and integrity, we will investigate a philosophical analysis in which we consider possible influences from publication pressure that became widespread over all disciplines. We will clarify if and how mathematics and the arts are sensitive to scientific research misconduct or questionable research practices.  相似文献   

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The implementation of science reform must be viewed as a systems-level problem and not just focus on resources for teachers and students. High-capacity instructional leadership is essential for supporting classroom science instruction. Recent reform efforts include a shift from learning about science facts to figuring out scientific phenomena in which students use science practices as they build and apply disciplinary core ideas. We report findings from a research study on professional development (PD) to support instructional leaders' learning about the science practices. After participating in the PD, the instructional leaders' familiarity with and leadership content knowledge of the science practices significantly improved. Initially, principals used their understandings from other disciplines and content neutral visions of classrooms to make sense of science instruction. For example, they initially used their understandings of models and argument from ELA and math to make sense of science classroom instruction. Furthermore, some principals focused on content neutral strategies, like a clear objective. Over the course of the PD workshops, principals took up the language of the science practices in more nuanced and sophisticated ways. Principals' use of the language of the science practices became more frequent and shifted from identifying or defining them to considering quality and implementation in science classrooms. As we design tools to support science, we need to consider instructional leaders as important stakeholders and develop resources to specifically meet their needs. If the science feels too unfamiliar or intimidating, principals may avoid or reframe science reform efforts. Consequently, it is important to leverage instructional leaders' resources from other disciplines and content neutral strategies as bridges for building understanding in science. We argue that the science practices are one potential lever to engage in this work and shift instructional leaders' understandings of science instruction.  相似文献   

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Teacher practices are essential for supporting students in scientific inquiry practices, such as the construction of scientific explanations. In this study, we examine what instructional practices teachers engage in when they introduce scientific explanation and whether these practices influence students' ability to construct scientific explanations during a middle school chemistry unit. Thirteen teachers enacted a project‐based chemistry unit, How can I make new stuff from old stuff?, with 1197 seventh grade students. We videotaped each teacher's enactment of the focal lesson on scientific explanation and then coded the videotape for four different instructional practices: modeling scientific explanation, making the rationale of scientific explanation explicit, defining scientific explanation, and connecting scientific explanation to everyday explanation. Our results suggest that when teachers introduce scientific explanation, they vary in the practices they engage in as well as the quality of their use of these practices. We also found that teachers' use of instructional practices can influence student learning of scientific explanation and that the effect of these instructional practices depends on the context in terms of what other instructional practices the teacher uses. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 45: 53–78, 2008  相似文献   

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Learning objects (LOs), generally understood as digital learning resources shared and accessed through the Internet and reused in multiple learning contexts, have aroused enthusiasm in the field of educational technology. Although LOs offer many possibilities to change educational practices, there is a lack of empirical evidence on the effectiveness and usefulness of LOs. This paper reports results from three studies on effectiveness of LOs in various instructional settings. According to the results, there exists interaction between the effectiveness of LOs and various instructional arrangements. In order to be effective LOs require carefully designed learning environments and instructional arrangements. LOs themselves do not guarantee high‐quality learning performance and meaningful learning activities. It is the context of use together with instructional arrangements that defines the pedagogical value of LOs.  相似文献   

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There is increasing consensus among psycho-educational scholars about argumentation as a means to improve student knowledge and understanding of subject matter. In this article, we argue that, notwithstanding a strong theoretical rationale, causal evidence is not abundant, definitions of the objects of study (argumentation, learning) are often not well defined, and the variance in research methods is large. We argue that we systematically review the available research evidence by mapping it on the Argumentation For Learning research framework, which specifies the different antecedents, dialogue characteristics, and learning outcomes of argumentation. In doing so, we identify claims that are supported with substantive empirical evidence and demonstrate which questions are still open to further empirical examination. We also uncover several promising, relatively unexplored venues for future research.  相似文献   

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Investigating the effectiveness of instructional practices provides an evidence base to inform instructional decisions. Synthesizing research studies on instructional effectiveness provides an estimate of the generalizability of effectiveness across settings, along with an exploration of factors that may moderate the impact, which cannot be achieved within individual studies. This study sought to provide a synthesis of evidence-based instructional practices (EBIPs) particular to chemistry through meta-analysis. Ninety-nine studies were analyzed comprising a broader view of chemistry specific studies than past meta-analyses. The results showed that EBIPs feature a demonstrably positive impact on students' academic performance in chemistry, although assessment topic coverage and setting size emerged as relevant moderators of impact and prevented making definitive conclusions of the relative impact of each EBIP. In examining publication bias, an asymmetric distribution of studies based on standard error (SE) and effect size was found, indicative of potential publication bias. To explore the potential impact of bias, the trim and fill method was employed resulting in a range for the overall weighted effect size from 0.29 to 0.62. The study concludes that evidence-based instructional practices have demonstrated effectiveness even in consideration of potential publication bias, as the range of effect sizes remains positive, but highlights the continued need to publish null findings in the research literature.  相似文献   

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We investigated how 2 different curricular scaffolds (context-specific vs. generic), teacher instructional practices, and the interaction between these 2 types of support influenced students' learning of science content and their ability to write scientific arguments to explain phenomena. The context-specific scaffolds provided students with hints about the task and what content knowledge to use in or incorporate into their writing. The generic scaffolds supported students in understanding a general framework (i.e., claim, evidence, and reasoning) regardless of the content area or task. This study focused on an 8-week middle school chemistry curriculum that was enacted by 6 teachers with 578 students during the 2004–2005 school year. Analyses of identical pre- and posttests as well as videotapes of teacher enactments revealed that the curricular scaffolds and teacher instructional practices were synergistic in that the effect of the written curricular scaffolds depended on the teacher's enactment of the curriculum. The context-specific curricular scaffolds were more successful in supporting students in writing scientific arguments to explain phenomena, but only when teachers' enactments provided explicit domain-general support for the claim, evidence, and reasoning framework, suggesting the importance of both types of support in successful learning environments.  相似文献   

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This paper explores and challenges the rationale for current, mainstream approaches to teachers’ continuing professional development (CPD) within schooling systems. Such approaches are significantly influenced by neoliberal and managerial pressures, evident in advocacy for generic, individualistic models of teacher learning, often focused on specific state-sanctioned domains. The paper draws upon a précis of recent action research literature, and empirical research from Sweden, to argue for an alternative paradigm, based on the practices and principles of participatory and collaborative action research. Action research is not presented as a simplistic ‘method’ which can be ‘applied’ regardless of context, but is explicitly focused on situated, specific, local sites. While more managerial and neoliberal practices can close down debates necessary for effecting real improvements in practice, evidence suggests action research, in its emancipatory iterations, enables a rich conception of educational practice which cannot be ‘managed’ into existence by a simplistic application of ‘what works.’  相似文献   

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以3位英语教师的课程实施为案例,采用定性研究的多案例研究方法,试图探究两个问题:(1)教师在课程实施过程中,是否完全依据课程计划执行?(2)如果没有,是哪些因素导致了课程实施偏离了教师课程计划?研究结果表明:教师的课堂计划与课堂实施不一致。造成课程实施偏离课程计划的深层次原因在于:教师内隐教学观、学生观和知识体系以及外在多变的课堂环境。研究结论不仅为教师反思带来实证素材,而且在一定程度上丰富了外语教师认知研究。  相似文献   

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In this article, we argue that human resource (HR) management practices are important components of strategies for improving student achievement in an accountability environment. We present a framework illustrating the alignment of educational HR management practices to a teacher performance competency model, which in turn is aligned with student achievement goals. We identify and illustrate the various HR practices that could be aligned to the performance competency model and to each other. These HR practices include recruitment, selection, induction, mentoring, professional development, compensation, performance management, and instructional leadership. We then describe HR practices in 2 districts where empirical links between teacher competency and student achievement were shown (Cincinnati and Washoe County) and evaluate how much alignment was in place. We discuss the importance of HR alignment analysis for diagnosing districts' teacher quality improvement efforts, and we present suggestions for future research on the strategic use of HR management in K-12 educational organizations.  相似文献   

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《教育心理学家》2013,48(2):177-207
The emergence of compensatory education and special education as two distinct entities within the larger educational system can be readily understood in terms of each program's unique social and historical background. An argument for continued separation of treatment along programmatic lines cannot be supported, however, due to growing evidence that the educational rationale for separate systems does not hold. That is, specific instructional treatments tend not to vary across programs, and particular strategies found to be effective are effective for both compensatory and special education students. Drawing upon a diverse pool of studies, we review the findings on the features of effective instructional practices that help to move the lower quartile of students closer to the mean and that are not setting bound. The article concludes with a discussion of the implications of effective instruction research for future research, reform policies, and current educational practices.  相似文献   

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Teacher practices are essential for supporting learners in scientific inquiry practices of framing research questions, designing and conducting investigations, collecting data, and drawing conclusions. This study examines instructional practices of two Grade 11 Physical Science teachers engaged in teaching practical investigations. Data were collected from video recordings of teachers?? enactment of pre-laboratory, laboratory and post-laboratory practical investigation lessons. Other data sources included video-based classroom observations, teacher and learner interviews, and artefacts, such as teacher handouts, supplemental materials and learner work. The results suggest that when teachers introduce practical investigations, they vary in the practices they engage in as well as the quality of their use of these practices. Implications for teacher practices of scientific inquiry are explored.  相似文献   

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In recent years, research on students' scientific argumentation has progressed to a recognition of nascent resources: Students can and do argue when they experience the need and possibility of persuading others who may hold competing views. Our purpose in this article is to contribute to this progress by applying the perspective of framing to the question of when and how a class forms and maintains a sense of their activity as argumentative. In particular, we examine three snippets from a sixth‐grade class with respect to how the students—and the teacher—experience, or frame, what is taking place. We argue that they show dynamics of framing for individuals and for the class as a whole that affect and are affected by students' engagement in argumentation. We close the article with implications of this perspective for research, teaching, and instructional design. © 2011 Wiley Periodicals, Inc. J Res Sci Teach 49: 68–94, 2012  相似文献   

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Although research suggests that the use of child-initiated vs. teacher-directed instructional practices in early childhood education has implications for learning and development, the precise nature of these effects remains unclear. Using data from the Midwest Child-Parent Center (CPC) Expansion Project, the present study examined the possibility that a blend of child- and teacher-directed practices best promotes school readiness among preschoolers experiencing high levels of sociodemographic risk and explored whether the optimal blend varies based on child characteristics. Sixty-two CPC preschool teachers reported their instructional practices throughout the year, using a newly developed questionnaire—the Classroom Activity Report (CAR). The average reported proportion of child-initiated instruction was examined in relation to students’ end-of-year performance on a routine school readiness assessment (N = 1289). Although there was no main effect of child-initiated instruction on school readiness, there was a significant interaction between instruction and student age. Four-year-olds’ school readiness generally improved as the proportion of child-initiated time increased, while 3-year-olds showed a U-shaped pattern. The present findings add to the evidence that child-initiated instruction might support preschoolers’ school readiness, although they also suggest this relation may not always be linear. They also point to the importance of examining instructional strategies in relation to student characteristics, in order to tailor strategies to the student population. The CAR has potential as a brief, practical measurement tool that can support program monitoring and professional development.

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A trend in medical schools across the United States is the refurbishing of histology laboratories with digital microscopy systems. Although such systems may reduce curricular time, they do not teach basic microscope skills, and students who learn solely with these systems may be less prepared for their practices or specialties, particularly in rural areas that may not be equipped with digital microscope technology. At the West Virginia School of Osteopathic Medicine (WVSOM), students are trained to practice in a wide variety of environments, especially rural areas. A research survey was conducted to gather information for evidence‐based decisions about histology education at WVSOM. The survey asked a range of questions concerning histology knowledge, tissue preparation, and microscopy. Responses did not differ significantly between physicians in urban versus rural practices. Ninety percent of physicians do not utilize digitized images, and only 50% have microscopes readily available. Regardless of the technology available, 90% feel that students must have microscope training and 88% of physicians feel that histology is important to the medical curriculum and use their histology knowledge often (weekly or daily) (66%). These results demonstrate that histology education should move toward a blending of traditional microscope and glass slides with computer‐based instructional technologies. Anat Sci Educ 2:205–209, 2009. © 2009 American Association of Anatomists.  相似文献   

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Creationists who object to evolution in the science curriculum of public schoolsoften cite Jonathan Well's book Icons of Evolution in their support (Wells2000). In the third chapter of his book Wells claims that neither paleontologicalnor molecular evidence supports the thesis that the history of life is an evolutionaryprocess of descent from preexisting ancestors. We argue that Wells inappropriatelyrelies upon ambiguities inherent in the term `Darwinian' and the phrase `Darwin'stheory'. Furthermore, he does not accurately distinguish between the overwhelmingevidence that supports the thesis of common descent and controversies that pertainto causal mechanisms such as natural selection. We also argue that Wells' attemptsto undermine the evidence in support of common descent are flawed and hischaracterization of the relevant data is misleading. In particular, his assessment ofthe `Cambrian explosion' does not do justice to the fossil record. Nor do his selectivereferences to debate about molecular and paleontological phylogenies constitute a caseagainst common descent. We conclude that the fossil and molecular evidence is morethan sufficient to warrant science educators to present common descent as a well-established scientific fact. We also argue that diagrams depicting the `tree of life' can be pedagogically useful as simplified representations of the history of life.  相似文献   

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