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   322篇
  免费   4篇
教育   287篇
科学研究   10篇
各国文化   3篇
体育   9篇
信息传播   17篇
  2024年   1篇
  2022年   4篇
  2021年   2篇
  2020年   3篇
  2019年   8篇
  2018年   9篇
  2017年   10篇
  2016年   12篇
  2015年   9篇
  2014年   13篇
  2013年   52篇
  2012年   11篇
  2011年   11篇
  2010年   12篇
  2009年   11篇
  2008年   11篇
  2007年   14篇
  2006年   9篇
  2005年   7篇
  2004年   4篇
  2003年   4篇
  2002年   10篇
  2001年   5篇
  2000年   6篇
  1999年   8篇
  1998年   9篇
  1997年   7篇
  1996年   6篇
  1995年   6篇
  1994年   5篇
  1993年   5篇
  1992年   5篇
  1991年   4篇
  1990年   2篇
  1989年   5篇
  1987年   2篇
  1986年   3篇
  1985年   2篇
  1984年   2篇
  1982年   1篇
  1981年   2篇
  1980年   1篇
  1979年   1篇
  1978年   4篇
  1975年   4篇
  1974年   2篇
  1970年   1篇
  1962年   1篇
排序方式: 共有326条查询结果,搜索用时 31 毫秒
51.
Environmental degradation is a general problem but it is often more serious in developing nations where levels of awareness are lower than in industrialized countries. There is, therefore, a need particularly in developing countries to increase pro-environmental attitudes and behaviors. In this paper, we report the results of a quasi-experimental study designed to change environmental attitudes and environmental behaviors among 263 science pre-service teachers. The treatment consisted in the form of a green chemistry curriculum. We found statistically reliable changes in environmental attitudes, as measured by the New Ecological Paradigm, and in eight self-reported environmental behaviors. The Bayesian t-test suggests that the evidence for the changes to have been the result of the green chemistry curriculum is decisive. We conclude that the green chemistry curriculum constitutes a suitable context: (a) for supporting pre-service teachers in their development of pro-environmental attitudes and (b) for changing the levels of self-reported pro-environmental actions.  相似文献   
52.
53.
Teachers often have difficulty implementing inquiry‐based activities, leading to the arousal of negative emotions. In this multicase study of beginning physics teachers in Australia, we were interested in the extent to which their expectations were realized and how their classroom experiences while implementing extended experimental investigations (EEIs) produced emotional states that mediated their teaching practices. Against rhetoric of fear expressed by their senior colleagues, three of the four teachers were surprised by the positive outcomes from their supervision of EEIs for the first time. Two of these teachers experienced high intensity positive emotions in response to their students' success. When student actions/outcomes did not meet their teachers' expectations, frustration, anger, and disappointment were experienced by the teachers, as predicted by a sociological theory of human emotions (Turner, J. H. (2007). Human emotions: A sociological theory. London, England: Routledge). Over the course of the EEI projects, the teachers' practices changed along with their emotional states and their students' achievements. We account for similarities and differences in the teachers' emotional experiences in terms of context, prior experience, and expectations. The findings from this study provide insights into effective supervision practices that can be used to inform new and experienced teachers alike. © 2012 Wiley Periodicals, Inc. J Res Sci Teach 50:137–161, 2013  相似文献   
54.
Abstract

The RFF Reader in Environmental Science and Resource Management , edited by Wallace E. Oates. Washington, DC: Resources for the Future. 1999. Paperback. $22.95. ISBN 0-915707-96-9.

Science through Multiple Intelligences: Patterns that Inspire Inquiry , by Robert Barkman. Tucson, AZ: Zephyr Press, Inc. 1999. Paperback. 165 pages. $39.00. ISBN 1-56976-096-9.

Earth Report 2000: Revisiting the True State of the Planet , edited by Ronald Bailey. New York: McGraw-Hill. 2000. Paperback. 362 pages. $19.95. ISBN 0-07-134260-5.

Hard Green: Saving the Environment from the Environmentalists (A Conservative Manifesto) , by Peter Huber. New York: Basic Books. 1999. Hardcover. $25.00. ISBN 0-468-03112-9.

Song of the Meadowlark , by James Eggert. Berkeley, CA: Ten Speed Press. 1999. Paperback. 145 pages. $12.95. ISBN 1-58008-034-0.

The Greening of Planet Earth: The Effects of Carbon Dioxide on the Biosphere , Greening Earth Society, 4301 Wilson Blvd., Suite 805, Arlington, VA 22203-4193; tel. 703-907-6168; fax 703-907-6161; . 1992. Color. 27 min 50 s. $15.00.

The Greening of Planet Earth Continues: The Promise for the 21st Century & Beyond , Greening Earth Society. 1998. Color. 27 min 30 s. $15.00 (or both for $25.00).

Nature's Nation: An Environmental History of the United States , by John Opie. New York: Harcourt Brace and Company. 1998. Paperback. 515 pages. ISBN 0-15-500219-8.

Visions of Paradise: Glimpses of Our Landscape's Legacy , by John Warfield Simpson. Berkeley: University of California Press. 1999. Clothbound. 387 pages. $35.00. ISBN 0-520-21364-5.

Beyond the Land Ethic: More Essays in Environmental Philosophy , by J. Baird Callicott. Albany: State University of New York Press. 1999. Paperback. 427 pp. $24.95. ISBN 0-7914-4084-2.

The Morning After Earth Day , by Mary Graham. Washington, DC: Brookings Institution Press. 1999. Hardcover, 153 pages. ISBN 0-8157-3236-8.

Natural Resource Management and Institutional Change , by Diana Carney and John Farrington. New York: Routledge. 1998. Hardback. 120 pages. $60.00. ISBN 0-415-18604-8.

Green Ink: An Introduction to Environmental Journalism , by Michael Frome. Salt Lake City: University of Utah Press. 1998. Paperback. 204 pages. $19.95. ISBN 0-87480-582-1.  相似文献   
55.
Cultural‐historical activity theory, an outcrop of socio‐psychological approaches toward human development, has enjoyed tremendous growth over the past two decades but has yet to be appropriated into science education to any large extent. In part, the difficulties Western scholars have had in adopting this framework arise from its ontology, which is materialist dialectical and, hence, does not allow easy absorption into non‐dialectical (classical logical) thinking underlying much of Western scholarship. Cultural‐historical activity theory has tremendous potential because it sublates traditional dichotomies in everyday teaching‐learning situations including individual/collective, body/mind, intra‐/inter‐psychological, cognitive/emotive and psychological/sociological. In this contribution, we not only review the existing literature that uses or develops this non‐dualistic approach, but also articulate an intelligible explication of the theory that is more accessible to Western scholars and describe possible future curriculum work and research in science education as an expression of the fruitfulness of the theory.  相似文献   
56.
57.
The aim of this study is to investigate the measurement invariance of media users’ entertainment experiences as conceptualized by two-process models of entertainment (i.e., enjoyment and appreciation) across different media formats. With this purpose, the present research relates to the recent rise of entertainment research, embracing more and more media types and formats with which entertainment experiences may occur. At the same time, it addresses a methodological issue that has rarely been addressed in communication research. Focusing on one of the most often used measurement instruments in entertainment research, on three different media formats (political talk shows, comedies, and dramas), the study finds evidence for configural, metric, and scalar invariance for the scale. The theoretical and practical implications of the findings are discussed.  相似文献   
58.
In information retrieval research, models and systems traditionally assume that a single person is querying and reviewing the results. However, several empirical studies of professional practice identified collaboration during IR as everyday work patterns in order to solve a shared information need and to benefit from the diverse expertise and experience of the team members. Moreover, most IR systems that are employed in professional work routines are designed for individual use and prototype collaborative systems are too limited to support use in todays work practice. To bridge this gap, this papers develops and formalizes a decision theoretic approach towards supporting a team of people that explicitly set out together to resolve a shared information need. We develop a formal cost model for collaborative IR that considers the trade-off between estimated relevance of a document as well as estimated document redundancy. From this cost model, we use a decision theoretic approach to derive the notion of activity suggestions, that is, a formal optimum criterion that describes optimum collaboration strategies in IR as the solution of an integer linear program. Those collaboration strategies are suggested to team members with the aim to facilitate the collaborative performance of information retrieval tasks. We demonstrate the application of our model by means of search result division in two collaborative search tasks. In the conducted experiments, we study the effects of different domain knowledge and resulting relevance assessments of team members in four different conditions. The gathered results indicate that our approach can improve the retrieval effectiveness of teams in recall-oriented tasks.  相似文献   
59.
The study described in this article examined the factors in the development of reasoning on the balance beam. The results of this and other investigations by the author led to the development of a model of problem solving and of the transition between levels of performance, that is, from novice to expert behaviors in a specific problem domain. The sample for this study consisted of 34 nonscience majors enrolled in Physical Science I at the University of Southern Mississippi. The results of this study showed (a) significant correlations between the predictor variables of numerical inductive reasoning ability and ratio span and the dependent measure of amount of practice until mastery of balance beam problems, (b) that there existed significant differences on the predictors between subjects who used the ratio scheme versus those who used the product-moment rule to do balance beam problems, (c) that the sequence of behaviors until mastery of the balance beam was not invariant, and (d) that there existed significant negative correlations between individuals' tendencies to avoid unsuccessful algorithms and the frequency of incidences of monitoring the learning process on one side and the amount of practice and the construct of short-term storage space on the other side. The results of this and other studies by the author are used to develop a model of problem solving and of the development of problem-solving behaviors. This model also includes recent findings in short-term memory and problem-solving research. The implications of this model for instruction are discussed.  相似文献   
60.
In this paper we argue that scientific literacy ought to be rethought in that it involves ethics as its core element. Considering the fact that science education has addressed ethical dilemmas of Science, Technology, Society and Environment (STSE) issues, it is worthwhile to question what the ethics of scientific knowledge mean in terms of their implications in modern society where knowledge generally is separated from action and thereby from the responsibility for knowing. We draw on the concept of integrity of knowing to analyze knowledge about the environment in Korean sixth—grade science classrooms. Examining the notion of immediate coping and ConfucianCheng, we differentiate ‘knowing about ethics’ and ‘knowing ethically’ with respect to STSE issues. We challenge the notion of knowing, suggesting instead that there is not only knowing about but knowingin andfor action. Participatory scientific literacy ought to aim for the latter form of knowing. This understanding of ethics and scientific literacy could help science educators bring forth the responsibility for knowledge in science classrooms by encouraging students to become active and responsible concerning STSE issues.  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