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171.
336 students, 186 girls and 150 boys were met at the end of the school year, both at grade six and at Secondary one, in order to examine the impact of the transition from elementary to secondary school on various motivational variables. Analyses showed changes in self-efficacy beliefs and learning goals, whatever students’ level of achievement and gender. However, self-efficacy beliefs appeared as the most powerful predictor of academic performance at both school levels. In addition, the pattern of relations between academic performance and the variables examined was relatively similar at both times of measurement. The discussion focuses on changes in self-efficacy beliefs and learning goals and on their relations to academic performance.  相似文献   
172.
This article explores science TEACHERS' perceptions of and consequent decisions about the development and implementation of a nontraditional science curriculum. It is a case-study analysis that examines the perceptions of 14 secondary teachers of a model science/technology/society (STS) curriculum designed to promote scientific literacy. Although the TEACHERS' decisions varied on whether to accept, alter, or reject the STS curriculum, they shared similar concerns about the development and implementation of this multidisciplinary curriculum. There existed a common set of five factors that the teachers believed to be critical, and that strongly affected their daily teaching decisions. This study offers insights into how science teachers perceive an STS curriculum, and the influence those perceptions have on their teaching decisions. It explores curricular issues from the frame of reference of teachers, the key factor in successfully implementing innovations.  相似文献   
173.
The role of comprehension monitoring in Children's revision   总被引:2,自引:0,他引:2  
Revision is a critically important component of the writing process, yet much research indicates that young children are often reluctant to revise unless provided with strong adult encouragement and support. Children's limited comprehension monitoring ability may contribute to their difficulty with revision. Children in the early elementary school years have been found to systematically overestimate the clarity of text, and therefore they often fail to identify potential comprehension problems that might be experienced by a naive reader. Conversely, accurate assessment of text comprehensibility has been shown to lead to successful revisions by both older and younger children. Recent studies indicate that training in comprehension monitoring strategies in turn yields benefits for children's revision.  相似文献   
174.
Recent governments in the United Kingdom have introduced a number of initiatives aimed at improving the literacy levels of children. Policy and practice should be informed by rigorous evidence, and this evidence should be subjected to critical scrutiny. In the present paper the results of a ‘tertiary’ review of systematic reviews in literacy learning are presented. The methods, results and conclusions of 14 systematic reviews, containing meta‐analyses and meeting all the inclusion criteria for the tertiary review, are presented. The quality of the reviews, appraised using an adaptation of the Quality of Reporting of Meta‐analyses statement, is discussed. Overall the quality of the meta‐analyses included in this tertiary review was good; all reviews clearly stated their research question, and their methods of searching for and selecting included studies; most described their data extraction and used some form of quality assessment of included studies. However, six reviews did not make an assessment of publication bias, which is potentially a major threat to the validity of any systematic review. A number of reviews in this tertiary review are judged to be of sufficiently high quality in order to provide reliable evidence for the effectiveness of literacy interventions.  相似文献   
175.
There are increasing calls within the educational research community to undertake more randomised controlled trials (RCTs). Whilst educational researchers turned away from using the RCT in the last 30 years, health care researchers have adopted the method with vigour. However, there have been many methodological innovations of the RCT, developed by health services researchers, in recent years. Many of these innovations are directly applicable to educational research. In this paper we describe some of the important aspects of trial methodology that educational researchers ought to consider when they design and undertake trials. Specifically, we describe the importance of systematic reviews, the need for a trial protocol, sample size requirements, outcome measures, concealment of the randomisation process from the investigators, intention to treat analysis, and the metric--numbers needed to teach (NNT). Addition ally, we argue that there are considerable similarities between health and education allowing the use of RCT methodological innovations to be directly utilised in educational research.  相似文献   
176.
Early school leaving has been identified as a key policy priority across Europe. In this article, we critically discuss the underpinning assumptions and rationale for this policy focus, challenging the association that is made between early school leaving, economic growth and employment. We suggest that ESL is important, not because it is inhibiting growth or that it is responsible for high levels of youth unemployment, but because it helps to sustain and reproduce inequalities. We problematise the utilitarian conceptualisation of education and linear models of educational pathways that are embedded in this policy framework and critically discuss strategies that are proposed to address early school leaving. We argue that the key criteria for assessing such strategies should be the extent to which they meet social equity and social inclusion goals.  相似文献   
177.
178.
Previous studies on overarm throwing have described a proximal-to-distal segmental sequence. The proximal segments reached their maximal linear velocities before the distal ones. In handball, no study has demonstrated this sequence from the upper torso to the wrist, although a recent study did present a different organization. The aim of this study was to analyse the throwing arm segmental organization during handball throwing. We found that the maximal linear velocity of the shoulder occurred after the maximal linear velocity of the elbow. Moreover, the maximal angular velocity of the upper torso occurred later than that of the elbow. Hence, contrary to other disciplines, the rotation of the upper torso was not suddenly stopped just after the forward arm motion was initiated. These results may apply to handball in general or be specific to the population of handball players studied. It may be advisable in future studies to include international players.  相似文献   
179.
Abstract

Running shoe construction influences the forces experienced by the human body while running. The aim of this study was to ascertain whether the new sole architecture of the On running shoe reduces ground reaction forces compared with running barefoot or with a conventional running shoe and whether it changes the physiological parameters of running in shoes. Thirty-seven trained male participants were studied while running at submaximal speeds wearing their conventional running shoe, wearing the On running shoe and while barefoot. Additional biomechanical and physiological values were investigated to determine whether the On running shoe induced any changes in these parameters compared with conventional running shoes. The On exhibited similar ground reaction forces as conventional shoes, and these were different from the forces experienced while running barefoot, showing that the On was more similar to typical shoed running. No difference was observed in running economy between the On and a conventional shoe model. However, a slightly lower heart rate (HR) (≈1.3%) and blood lactate concentration (≈5.5%) were observed during submaximal running with the On running shoe compared with a conventional running shoe, as well as a greater lateral deviation of the centre of pressure mid-stance. The ramifications of the reduced HR and blood lactate concentration for competitive performance are unknown.  相似文献   
180.
In this article, we present a case study of a beginning science teacher’s year-long action research project, during which she developed a meaningful grasp of learning from practice. Wendy was a participant in the middle grade science program designed for career changers from science professions who had moved to teaching middle grade science. An extended action research experience in the second year of induction proved valuable to her in learning how to modify her teaching to reach her goal, using evidence of student learning as her guide. This article closes with reflections on the value of extended action research within science teacher preparation, particularly early in one’s career, and explores the promise for ongoing practice-based professional development throughout a teacher’s career.  相似文献   
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