首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   119554篇
  免费   1883篇
  国内免费   234篇
教育   82279篇
科学研究   13422篇
各国文化   1996篇
体育   9672篇
综合类   171篇
文化理论   1064篇
信息传播   13067篇
  2021年   942篇
  2020年   1666篇
  2019年   2582篇
  2018年   3154篇
  2017年   3399篇
  2016年   3435篇
  2015年   2325篇
  2014年   3186篇
  2013年   27341篇
  2012年   2452篇
  2011年   2849篇
  2010年   2368篇
  2009年   2617篇
  2008年   2436篇
  2007年   2181篇
  2006年   2399篇
  2005年   2397篇
  2004年   3072篇
  2003年   2373篇
  2002年   2194篇
  2001年   2130篇
  2000年   1716篇
  1999年   1448篇
  1998年   1282篇
  1997年   1353篇
  1996年   1555篇
  1995年   1367篇
  1994年   1344篇
  1993年   1344篇
  1992年   1411篇
  1991年   1310篇
  1990年   1329篇
  1989年   1240篇
  1988年   1090篇
  1987年   1041篇
  1986年   1050篇
  1985年   1298篇
  1984年   1185篇
  1983年   1091篇
  1982年   1088篇
  1981年   1014篇
  1980年   968篇
  1979年   1105篇
  1978年   1058篇
  1977年   966篇
  1976年   878篇
  1975年   711篇
  1974年   716篇
  1973年   683篇
  1972年   522篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
991.
Increasing numbers of Spanish-speaking preschool children require attention to improve the likelihood of success in school. This study, part of a larger 2-year ethnographic study of a Head Start classroom, elaborates the role of teachers’ interactions with students who were learning English. Using an interactional ethnography approach, the authors focus on the social nature of these interactions. The study illuminates the kinds of teacher interactions with students that support and hinder the students’ language learning. It reinforces the importance of student engagement in social interactions with teachers and with English other than codes of obedience and authority. Finally, it recommends actions teachers can take to provide optimal circumstances for English learning interactions for students.
Lesley A. RexEmail: URL: http://www.umich.edu/~rex/
  相似文献   
992.
We collected think-aloud, pre-test, post-test, and motivation data from 43 undergraduates to examine the impact of conceptual scaffolds on the fluctuation of certain motivation constructs and use of self-regulatory processes during learning with hypermedia. Participants were randomly assigned to either the No Scaffolding (NS) or Conceptual Scaffolding (CS) condition. During the experimental session, each participant individually completed a pre-test on the circulatory system, a pre-task motivation questionnaire, one 30-min hypermedia learning task during which they learned about the circulatory system, a motivation questionnaire at three regular intervals during this learning task, a post-test on the circulatory system, and a post-task motivation questionnaire. Results indicated that while participants in both conditions gained declarative knowledge, participants who received conceptual scaffolds during learning demonstrated deeper understanding of the circulatory system on the post-test. In terms of self-regulatory processes, the results indicated that participants in the CS condition used significantly more planning processes during learning than participants in the NS condition. Additionally, participants in both conditions significantly decreased their use of strategies as they progressed through the learning task. Regarding motivation while learning with hypermedia, results indicated that participants in both conditions reported significantly increased levels of interest as they progressed through the learning task. Furthermore, participants in the CS condition reported the task as being easier and putting forth less effort than participants in the NS condition.
Daniel C. MoosEmail:
  相似文献   
993.
Using a database of allstudents in higher education in the UK in1995–1996, students with dyslexia and those withno reported disability were compared in termsof demographic properties, programmes of studyand academic attainment. Students with dyslexiaconstituted 0.42% of all students resident inthe UK. Their representation varied with age,gender, ethnicity and entrance qualificationsand with their level, mode and subject ofstudy. Students with dyslexia were more likelyto withdraw during their first year of studyand were less likely to complete theirprogrammes of study, although with appropriatesupport the completion rate of students withdyslexia can match that of students with nodisabilities. In addition, students withdyslexia who completed first-degree programmestended to gain a poorer class of honours thanstudents with no reported disability, but 40%obtained first-class or upper second-classhonours. In short, dyslexia may havedeleterious consequences for progression,completion and achievement in higher education,but it is by no means incompatible with a highlevel of success, given appropriate commitmenton the part of the students and appropriateresources on the part of their institution.  相似文献   
994.
Guidance policies are often formulated in general terms. The recent European Union Resolution on Lifelong Guidance, for example, runs along two main lines. One line pursues the policy goal of creating a more inclusive society with active citizens. The other line pursues global competitiveness. These two pursuits may seem to present conflicting policy goals. The dilemmas that guidance practitioners encounter in this context are typically for individual guidance practitioners to resolve on their own. This article points to some of the issues at stake in terms of policy-making against social exclusion, and it suggests three possible guidance strategies: solving, preventing and coping.
Résumé. Politiques d’orientation: le cheval de Troie Les politiques d’orientation sont souvent formulées en termes généraux. La récente Résolution de l’Union Européenne des syndicats concernant l’orientation tout au long de la vie, par exemple, trace deux axes principaux. L’un de ces axes correspond à un but politique de création d’une société qui comprenne davantage de citoyens actifs. L’autre axe correspond à un objectif de compétitivité globale. Ces deux axes peuvent sembler correspondre à des buts politiques contradictoires. La résolution des dilemmes que rencontrent les praticiens de l’orientation dans ce contexte est en général laissée à leur libre appréciation. Cet article pointe certains des problèmes en jeu en termes de définition d’une politique contre l’exclusion sociale et suggère trois stratégies possibles d’orientation: résolution, prévention et adaptation.Zusammenfassung. Berufsberatungs-Politiken: Das Trojanische Pferd Berufsberatungpolitiken sind häufig auf der Grundlage allgemeiner Leitlinien formuliert. Die aktuelle Europäische Resolution zur lebenslangen Berufsberatung beispielsweise orientiert sich an zwei Hauptlinien. Eine Linie verfolgt das politische Ziel, mit aktiven Bürgern eine Gesellschaft zu entwickeln, die stärkere Beteiligung ermöglicht. Die andere Linie betont die globale Konkurrenzfähigkeit. Diese beiden Zielsetzungen könnten auf den ersten Blick als konkurrierende politische Ziele aufgefasst werden. Die Dilemmata, denen Berufsberaterinnen in diesem Zusammenhang ausgesetzt sind, sind typischerweise für das Feld der Berufsberatung von den BeraterInnen alleine aufzulösen. Dieser Artikel weist im Sinne einer Politik gegen sozialen Ausschluss auf einige Aspekte hin, die auf dem Spiel stehen, und er schlägt drei mögliche Beratungsstrategien vor: Lösung, Vermeidung und Anpassung.Resumen. Políticas de Orientación: el Caballo de Troya Las políticas de orientación se suelen formular en términos generales. La reciente Resolución de la Unión Europea sobre el Aprendizaje a lo Largo de la Vida, por ejemplo, se plantea en torno a dos ejes o líneas principales. La primera tiene como objetivo la política de crear una sociedad más inclusiva con ciudadanos activos. La otra línea promueve la competitividad global. Parece que estas dos finalidades podrían llevar a metas políticas contradictorias. Los dilemas que se les presenta a los orientadores en este contexto normalmente tienen que resolverlos por su cuenta. Este artículo pone de manifiesto algunas cuestiones que están en juego en relación a las políticas contra la exclusión social, y sugiere tres estrategias de orientación posibles: resolución, prevención, y manejo de la situación.
  相似文献   
995.
Resistance to interference was examined in rats that received a complex negative patterning discrimination in which XA and XB were followed by food reinforcement and XAB was not. Retention of the discrimination was evident after separate reinforcement of both A and B (Experiment 3), but not after reinforcement of either AB (Experiments 1 and 3) or XAB (Experiments 2 and 3). These data suggest that complex negative patterning discriminations are acquired configurally and that the relative similarity of the original discrimination and subsequent interference trials dictates the final degree of retention observed.  相似文献   
996.
The main goal of this research was to assess whether it is possible to help children develop their general understanding of emotions. Thirty-six nine-year-old children divided in two groups were examined using a pre-test/train/post-test design. The emotion understanding of the two groups was measured in the pre- and post-test phases using the Test of Emotion Comprehension (TEC). The experimental group received a teaching program about emotions during the training phase: School Matters In Lifeskills Education (SMILE). The control group received no special teaching about emotion during this phase. Results showed that the level of emotion understanding in the experimental group improved significantly between the pre- and post-test whereas no such change occurred in the control group. The theoretical and practical implications of the findings are discussed.  相似文献   
997.
Mothers' Concepts of Young Children's Areas of Personal Freedom   总被引:2,自引:0,他引:2  
White suburban working- to upper-middle-class mothers ( N = 40) of children ages 5 and 7 were interviewed regarding their concepts of children's areas of personal discretion, autonomy, and individuality. Mothers treated standardized moral, conventional, and prudential items as issues that mothers should control, while standardized personal items were treated as up to the child. In open-ended interviews, mothers reported setting limits around issues of safety, family conventions, and daily routines but permitted children to make decisions about food, recreational activities, clothes, and playmates. Mothers viewed mother-child conflict as occurring over these same issues and viewed children's choices as helping them to develop autonomy and competence. Mothers viewed their roles as educators and nurturers and valued the development of individuality in their children, which was thought to emerge in infancy or toddlerhood. Few age differences were observed, but gender differences were found in the ways mothers characterized boys and girls' resistances to parental authority and in the content of mother-child disputes. Results were interpreted in terms of the emergence of the personal domain in children.  相似文献   
998.
This paper is based on research in a university department of Fine Art. It is an exploration of the ways in which learning takes place - or fails to - in the spoken interchanges between tutors and students known as ‘cross-section crits’. The discussion draws on Harre's model of social and personal development and on a notion of argument to understand the place of shared knowledge and discourse, as well as conflict, in the construction of distinctive personal identity. Three examples of ‘crits’ are examined. These suggest insights into the culture of the fine art institution and offer implications for the role and conduct of talk and language in the teaching and learning process.  相似文献   
999.
High turnover and short tenures are the norm for state university presidents in the last part of the twentieth century. Depending on the type of institution, the average state university president stays in office about four years, some three years shorter than the national average of seven years for all higher education institutions. The article discusses this trend and relates length of tenure to the formal and informal evaluations of presidents. Beginning with a presentation of presidential tenure (time in office) data and a discussion of the benefits of longer terms, the article continues with a dialogue on the role of the president in state institutions of higher education. It is argued that the position of president necessitates constituent leadership with presidents often expected to please all constituencies. Included in this discussion are the nature, role, and effectiveness of evaluations of university presidents. The authors conclude that evaluations of presidents make little difference in decisions to retain or remove presidents. Even a good or great evaluation does not offset the impact of the unforseen event or changes in political leadership within a state or on a board. The authors agree that annual reviews or reports are valuable in improving a presidents performance and leadership. Evaluations make a difference when they are supervised by individuals with direct knowledge of the job, are fair in terms of expectations from often divergent constituent groups, and focus on maximizing the ability of the president to improve the institution.  相似文献   
1000.
The main aim of this study was to determine the pattern of errors in Spanish spelling. Specifically, we were interested in discovering if all Spanish words have similar levels of spelling difficulty or whether there are types of words that cause a high percentage of spelling errors. 972 children aged between 8 to 10 years were requested to write a short spontaneous story. Our objective was to analyse and to propose a classification system for the errors made by children in the initial stages of the acquisition of spelling skills. The results indicate (a) that the diverse forms of only 20 Spanish words produce 36 per cent of the spelling errors in Spanish, and (b) that substitution is the most frequent type of error (68 per cent of total errors), which occurs as a consequence of an inadequate knowledge of the rules of phoneme-grapheme correspondence. These findings have relevance for the teaching of writing in Spanish.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号