全文获取类型
收费全文 | 4572篇 |
免费 | 52篇 |
国内免费 | 10篇 |
专业分类
教育 | 3421篇 |
科学研究 | 241篇 |
各国文化 | 43篇 |
体育 | 406篇 |
综合类 | 3篇 |
文化理论 | 62篇 |
信息传播 | 458篇 |
出版年
2022年 | 27篇 |
2021年 | 44篇 |
2020年 | 59篇 |
2019年 | 112篇 |
2018年 | 141篇 |
2017年 | 151篇 |
2016年 | 146篇 |
2015年 | 100篇 |
2014年 | 119篇 |
2013年 | 936篇 |
2012年 | 131篇 |
2011年 | 128篇 |
2010年 | 149篇 |
2009年 | 135篇 |
2008年 | 146篇 |
2007年 | 144篇 |
2006年 | 109篇 |
2005年 | 95篇 |
2004年 | 100篇 |
2003年 | 81篇 |
2002年 | 96篇 |
2001年 | 66篇 |
2000年 | 107篇 |
1999年 | 74篇 |
1998年 | 74篇 |
1997年 | 65篇 |
1996年 | 73篇 |
1995年 | 57篇 |
1994年 | 67篇 |
1993年 | 63篇 |
1992年 | 49篇 |
1991年 | 70篇 |
1990年 | 51篇 |
1989年 | 47篇 |
1988年 | 37篇 |
1987年 | 45篇 |
1986年 | 45篇 |
1985年 | 43篇 |
1984年 | 47篇 |
1983年 | 39篇 |
1982年 | 31篇 |
1981年 | 35篇 |
1980年 | 30篇 |
1979年 | 24篇 |
1978年 | 32篇 |
1977年 | 38篇 |
1976年 | 27篇 |
1975年 | 22篇 |
1974年 | 23篇 |
1972年 | 14篇 |
排序方式: 共有4634条查询结果,搜索用时 11 毫秒
961.
Hari P. Koirala Marsha Davis Peter Johnson 《Journal of Mathematics Teacher Education》2008,11(2):127-138
The purpose of this paper is to share a performance assessment task and rubric designed to assess secondary school mathematics
preservice teachers’ pedagogical content knowledge and skills. The assessment task and rubric were developed in collaboration
with five education faculty, four arts and sciences faculty, and four high school teachers over a period of one year. Over
this period, the group met more than 15 times and designed an assessment task and rubric to measure secondary school preservice
teachers’ pedagogical content knowledge and skills. The assessment task and rubric were piloted at the end of the year and
extensively revised using the pilot data. The redesigned task and rubric were successfully carried out in the second and subsequent
years. Other teacher education programs can benefit from this assessment of teacher candidates’ pedagogical content knowledge
and skills. 相似文献
962.
Labour perspectives on the new politics of skill and competency formation: International reflections
Peter Sawchuk 《Asia Pacific Education Review》2008,9(1):50-62
Skill/competency approaches to workplace-based policy seek to assess and train for discrete individual competencies with the
goal of increasing employability and productivity. These approaches have become increasingly prominent across a range of advanced
capitalist countries. A substantial critique has emerged over this same period regarding issues of instrumentality and social
control, as well as the failure of skill/compentancy approaches to articulate a meaningful understanding of human learning
capacities. In this article, these critical perspectives are clarified further by a review of contributions to understanding
the skill/competence question emerging from sociology of work literature. Building from these critiques, this article outlines
recent experiences with and perspectives on skill/competency frameworks amongst different national labour movements. Included
in this outline is a more detailed, comparative analysis of Norway and Canada; here we see the lofty ‘new’, ‘knowledge economy’
rhetoric — in two countries where one might expect to see it blossom in application — brought down to earth by the realities
of industrial relations, employer intransigence and intra-labour movement differences. ‘Skill/competence’ proves to be a floating
signifier that, amongst both employers and labour, stands as a proxy for ‘power/control’ struggles. Degenerating in this way,
from a labour perspective, the new politics of skill/competency formation is seen to have spiraled toward irrelevance in Norway
and Canada; awaiting, in both countries, a re-invigoration through attention to changes in the participatory structure of
the labour process itself. 相似文献
963.
The present study extends earlier work on parental teaching style by making the task to be completed less structured, extending parent-child interaction over a 2 week time period, and equalizing the expertise of the parent relative to the child. Additionally, the study examines the effects of parental intrusiveness on a subsequent task. Subjects were 22 Caucasian middle class parent-child dyads. Audiorecordings were taped over a 2-week period while dyads were learning aspects of Logo computer programming. Even in this prolonged nonspecific learning situation, in which parents were encouraged to proceed at the child's pace, parents were overwhelmingly directive. Additionally, children of directive parents performed best on a subsequent generalization task. 相似文献
964.
Angela Lee Duckworth Heidi Grant Benjamin Loew Gabriele Oettingen Peter M. Gollwitzer 《教育心理学》2011,31(1):17-26
Adolescents struggle with setting and striving for goals that require sustained self‐discipline. Research on adults indicates that goal commitment is enhanced by mental contrasting (MC), a strategy involving the cognitive elaboration of a desired future with relevant obstacles of present reality. Implementation intentions (II), which identify the action one will take when a goal‐relevant opportunity arises, represent a strategy shown to increase goal attainment when commitment is high. This study tests the effect of mental contrasting combined with implementation intentions (MCII) on successful goal implementation in adolescents. Sixty‐six 2nd‐year high school students preparing to take a high‐stakes exam in the fall of their third year were randomly assigned to complete either a 30‐minute written mental contrasting with implementation intentions intervention or a placebo control writing exercise. Students in the intervention condition completed more than 60% more practice questions than did students in the control condition. These findings point to the utility of directly teaching to adolescents mental contrasting with implementation intentions as a self‐regulatory strategy of successful goal pursuit. 相似文献
965.
Zusammenfassung Der Frage nach den Steigerungsm?glichkeiten der (informellen) „Grundbildung“ und der F?rderung von Basiskompetenzen wird aus
bildungsbiographischer Perspektive nachgegangen, indem die familiale Bildungswirklichkeit in ihrem Wechselverh?ltnis zur schulischen
Bildungswirklichkeit anhand eines Fallbeispiels dargestellt wird. Am Beispiel der Vermittlung und Aneignung von information literacy wird gezeigt, dass es unumg?nglich ist, in der schulischen Bildungswirklichkeit von einer Kulturrelativit?t und Kulturgebundenheit
von information literacy als wichtigem Element von informeller Bildung auszugehen, die an unterschiedlichen Bildungsorten erworben wird und eine entsprechende
Vernetzung der Bildungsorte voraussetzt.
Um Bildungsarmut zu verhindern und m?glichst für alle Menschen die Voraussetzungen für die Gestaltung eines eigenen Lebenslaufs
und die Entwicklung einer verst?ndigen kulturellen Teilhabe- und sozialen Anschlussf?higkeit zu schaffen, muss sich, so die
These, die Institution Schule mehr für informelle Bildung und die p?dagogische Bearbeitung von kultureller Differenz sowie den Umgang mit Heterogenit?t ?ffnen, damit der oft
diskriminierende Umgang mit kultureller und sozialer Differenz in der Schule nicht in eine fürsorgliche (p?dagogische) Belagerung
und Entmündigung der Schüler durch die Schule umschl?gt. Dabei ist es wichtig, die informellen Bildungsleistungen der Familie
anzuerkennen und weiter zu entwickeln und in Verbindung mit der verst?rkten F?rderung von Erziehungspartnerschaften zwischen
Eltern und p?dagogischen Fachkr?ften darauf hinzuarbeiten, die Grundbildung und den Erwerb von notwendigen Basiskompetenzen
zu st?rken und das schulische Abwertungsdilemma von au?erschulisch erworbenen informellen Bildungsgehalten „f?rderdidaktisch“
zu bearbeiten.
相似文献
966.
Roger C Harris Anthony L Almada D Beorn Harris Mark Dunnett Peter Hespel 《Journal of sports sciences》2013,31(9):851-857
Three samples of Creatine Serum? ATP Advantage from Muscle Marketing USA, Inc. were assayed for creatine by two different techniques by four independent laboratories, and for creatinine by two different techniques by two laboratories. A further sample was assayed for phosphorylcreatine. Dry weight and total nitrogen were also analysed. Six male volunteers ingested in random order, over 3 weeks: (A) water; (B) 2.5?g creatine monohydrate (Cr?·?H2O) in solution; and (C) 5?ml Creatine Serum? (reportedly containing an equivalent amount of Cr?·?H2O). Blood samples were collected before and up to 8?h after each treatment and plasma was analysed for creatine and creatinine. Eight-hour urine samples were analysed for creatine. Ingestion of 2.5?g creatine monohydrate in solution resulted in a significant increase in plasma creatine (from 59.1±11.8?μmol?·?l?1 to 245.3±74.6?μM μmol?·?l?1; mean±s) and urinary creatine excretion. No increase in plasma or urinary creatine or creatinine was found on ingestion of Creatine Serum? or water. Analysis showed 5?ml of Creatine Serum? to contain <10?mg Cr?·?H2O and approximately 90?mg creatinine. Phosphorylcreatine was not detectable and only a trace amount of phosphorous was present. Total nitrogen analysis ruled out significant amounts of other forms of creatine. We conclude that the trace amounts of creatine in the product would be too little to affect the muscle content even with multiple dosing. 相似文献
967.
The Freshwater Ecology Laboratory at Connecticut College has developed an interactive, Web-based identification key to freshwater algal genera using the Lucid Professional and Lucid 3 software developed by the Centre for Biological Information Technology at the University of Queensland, Brisbane, Australia. The Key to Freshwater Algae was funded by the National Science Foundation (Award #CCLI-0229531) to encourage awareness of microscopic diversity through a creative, investigative approach to learning. Users may answer questions in any order to quickly and efficiently narrow down the list of taxa to only those that match the characteristics they have chosen. All characters and terms are clearly explained for ease of use by those unfamiliar with the algae. This non-hierarchical, user-friendly key is linked to Web pages containing a wealth of resources, including images, movies, and information about the morphology, ecology, and reproduction of each organism. These materials are especially well suited for classroom use in conjunction with cultures purchased from the Carolina Biological Supply Company, a popular distributor of biological materials. Cultures from the Carolina Biological Supply Company representing nearly 75 freshwater genera from a variety of algal groups were observed and photographed using high resolution digital imaging to fully document cellular structure and highlight distinguishing features. High quality video footage of each taxon incorporating titles, diagrams, and structural terminology was outputted as QuickTime movies, on DVD, and on VHS cassettes. The Key to Freshwater Algae and supplemental materials are available online at http://silicasecchidisk.conncoll.edu to provide an innovative alternative to traditional dichotomous keys that is particularly appropriate for introducing students in undergraduate life science courses to the algal groups and genera. 相似文献
968.
Educational Studies in Mathematics - This is a commentary on the ESM 2021 Special Issue on Innovations in Measuring and Fostering Mathematical Modelling Competencies. We have grouped the ten... 相似文献
969.
Galison P 《Isis; an international review devoted to the history of science and its cultural influences》2004,95(4):610-613
As Einstein's portrait comes increasingly to resemble an icon, we lose more than detail--his writings and actions lose all reference. This is as true for his physics as it is for his philosophy and his politics; the best of recent work aims to remove Einstein's interventions from the abstract sphere of Delphic pronouncements and to insert them in the stream of real events, real arguments. Politically, this means attending to McCarthyism, Paul Robeson, the Arab-Israeli conflict. Philosophically, it means tying his concerns, for example, to late nineteenth-century neo-Kantian debates and to his own struggles inside science. And where physics is concerned, it means attending both in the narrow to his responses to others' work and his reactions to his own sometimes misfired early work on, for example, general relativity and to the wider context of technological developments. Einstein remains and will remain a magnet for historians, philosophers, and scientists; the essays assembled here represent a strong sampling--but only a sampling--of a fascinating new generation of work on this perennial figure. 相似文献
970.
Current cognitive multimedia design theories provide several guidelines on how to integrate verbal and pictorial information.
However, the recommendations for the design of auditory texts (narrations) are still fragmentary, especially with regard to
the characteristics of the voices used. In the current paper, a fundamental question is addressed, namely, whether to use
a male or a female speaker. In two experiments, learners studied dynamic visualizations on probability theory that were accompanied
by narrations. The learner’s gender and the speaker’s gender served as between-subjects variables. In the first study, learners
were randomly assigned to speakers of different gender. In the second study, learners could choose among different speakers.
The results show that learners achieved better learning outcomes when the narration was presented by a female speaker rather
than a male speaker irrespective of the learner’s gender (speaker/gender effect). Being given the choice, learners preferred
female speakers, but this individual preference had no impact on learning outcomes. The results suggest augmenting purely
cognitive approaches to multimedia design by social-motivational assumptions. 相似文献