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21.
Two experiments are reported comparing performance in dominant and submissive rats as determined by a food-competition procedure. Ss in Experiment I were either trained to criterion or overtrained before being reversed on a visual discrimination task. Although the two groups did not differ significantly in learning the initial task, the dominant Ss were significantly slower on reversal than the submissives. Experiment II, which utilized a tandem runway, showed that when the reinforcer which maintained the running response was not available in the first goalbox, submissive rats responded with a greater increase in running speed in the second runway than dominant rats. These findings were discussed as reflecting motivational differences between dominant and submissive rats. 相似文献
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Molecular life science is one of the fastest-growing fields of scientific and technical innovation, and biotechnology has profound effects on many aspects of daily life—often with deep, ethical dimensions. At the same time, the content is inherently complex, highly abstract, and deeply rooted in diverse disciplines ranging from “pure sciences,” such as math, chemistry, and physics, through “applied sciences,” such as medicine and agriculture, to subjects that are traditionally within the remit of humanities, notably philosophy and ethics. Together, these features pose diverse, important, and exciting challenges for tomorrow''s teachers and educational establishments. With backgrounds in molecular life science research and secondary life science teaching, we (Tibell and Rundgren, respectively) bring different experiences, perspectives, concerns, and awareness of these issues. Taking the nature of the discipline as a starting point, we highlight important facets of molecular life science that are both characteristic of the domain and challenging for learning and education. Of these challenges, we focus most detail on content, reasoning difficulties, and communication issues. We also discuss implications for education research and teaching in the molecular life sciences. 相似文献
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In the field of education, the international trend is to turn to criterion-referenced grading in the hope of achieving accountable and consistent grades. Despite a national criterion-referenced grading system emphasising knowledge as the only base for grading, Swedish physical education (PE) grades have been shown to value non-knowledge factors, such as students’ characteristics and behaviour. In 2011, a new national curriculum was implemented which attempts to deal with the problem by prescribing specific knowledge requirements with a clear progression as the only basis for different grades. The aim of the present study is to explore the impact of the new knowledge requirements on what teachers consider important when assigning grades. It is also to discuss what non-knowledge-related aspects (if any) teachers continue to look for and why these seem to remain resilient to the reform. The Repertory Grid technique was employed to interview the teachers before (2009) and after the implementation (2013). During the interviews, the grading of 45 students was discussed, which generated 125 constructs. After the implementation, there was a near doubling of knowledge constructs, half as many motivation constructs and an almost total elimination of constructs based on confidence and social skills. While motivational factors were still considered valuable for the award of a higher grade, clear criteria seemed to be important, but too limited for the teachers’ needs. In order to understand the persistence of motivational factors, we discuss the results in relation to Bernstein’s interrelated message systems of curriculum, pedagogy and assessment. We emphasise the need to discuss how valid grades can be achieved and, at the same time, give value to the regulative discourse in order to realise the overarching national goals of values and norms in education and PE. 相似文献
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Previous studies identify a relationship between education and anti-immigrant attitudes. There is, however, uncertainty regarding the underlying explanations linking education to attitudes. In this article, we examine whether a relationship exists between exposure to teaching about critical thinking as well as multiculturalism (measured as religions/cultures as well as xenophobia/racism), and anti-immigrant attitudes among adolescents. In addition, we examine whether teacher qualification matters for attitudes. The analysis is based on survey data collected from high school students in Sweden. The results show an association between exposure to teaching about critical thinking as well as multiculturalism (both indicators) and anti-immigrant attitudes among students, i.e. higher exposure is related to lower levels of anti-immigrant attitudes. However, we find that teaching about xenophobia/ racism affects attitudes, but not when simultaneously controlling for teaching about critical thinking and religions/cultures. In terms of teacher qualification, we find that students in schools with a high proportion of certified teachers tend to have lower levels of anti-immigrant attitudes. 相似文献
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The aim of the study is to discursively identify student teachers’ perceptions of the teaching profession early in their education and their motives for this career choice. Students wrote a letter sharing thoughts on why they want to become a teacher, how they regard the teaching profession and if someone inspired them in their career choice. The empirical data consists of 259 student texts from three Swedish teacher education programmes. The study employed a qualitative method denoting different categorizations compared to previous studies, emphasising the idea of multiple motives for career choice and the link to student teachers’ evolving pedagogical identity. Major differences can be distinguished among the programmes, emphasising different main motives and shifting incipient pedagogic identities. The results indicate the value of organising teacher education programmes drawing on multiple motives, which is expected to contribute positively to completion of teacher education and teacher retention in future profession. 相似文献
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Lena Gray 《Assessment in Education: Principles, Policy & Practice》2020,27(2):142-159
ABSTRACTThis article conceptualises the relationship between exam board insider research and the policy-making context in which they operate. Exam board researchers are constrained by commercial and political interests in disclosing their knowledge. and face pressures in disseminating research, butalso find themselves working in contexts where calls to ‘evidence-based policy-making’ are ubiquitous. This can deprofessionalise and disenfranchise the researcher.. This article will depict the context faced by exam board researchers attempting to influence policy before portraying possible responses, evaluating how these can be applied to exam board research, with reference to research on standard-setting. The article will build on a conceptualisation of successful exam board insider research as the creation of Habermasian ‘communicative spaces’, applying lessons from research–policy interface literature to that conceptualisation. Inapplying those lessons, the article will suggest possible solutions to the problems faced by that group in their attempts to influence policymakers. 相似文献
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Higinio Dominguez Carlos A. LópezLeiva Lena Licón Khisty 《Educational Studies in Mathematics》2014,85(1):143-160
In this paper, we explored how engagement developed over time during a proportional reasoning unit for a group of US bilingual Latino/a students, with particular attention to aspects of social and cultural activity that supported students’ engagement. Our findings suggest that student mathematical engagement developed primarily as a relational process characterized by students’ social relations across time, their understandings about their relationships with mathematics, and the important relations emerging across proportional reasoning ideas. 相似文献
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Gunnar E. H?st Caroline Larsson Arthur Olson Lena A. E. Tibell 《CBE life sciences education》2013,12(3):471-482
Self-assembly is the fundamental but counterintuitive principle that explains how ordered biomolecular complexes form spontaneously in the cell. This study investigated the impact of using two external representations of virus self-assembly, an interactive tangible three-dimensional model and a static two-dimensional image, on student learning about the process of self-assembly in a group exercise. A conceptual analysis of self-assembly into a set of facets was performed to support study design and analysis. Written responses were collected in a pretest/posttest experimental design with 32 Swedish university students. A quantitative analysis of close-ended items indicated that the students improved their scores between pretest and posttest, with no significant difference between the conditions (tangible model/image). A qualitative analysis of an open-ended item indicated students were unfamiliar with self-assembly prior to the study. Students in the tangible model condition used the facets of self-assembly in their open-ended posttest responses more frequently than students in the image condition. In particular, it appears that the dynamic properties of the tangible model may support student understanding of self-assembly in terms of the random and reversible nature of molecular interactions. A tentative difference was observed in response complexity, with more multifaceted responses in the tangible model condition. 相似文献