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   22785篇
  免费   403篇
  国内免费   15篇
教育   16268篇
科学研究   2030篇
各国文化   219篇
体育   1906篇
综合类   13篇
文化理论   176篇
信息传播   2591篇
  2022年   172篇
  2021年   262篇
  2020年   388篇
  2019年   609篇
  2018年   833篇
  2017年   807篇
  2016年   704篇
  2015年   425篇
  2014年   661篇
  2013年   4449篇
  2012年   640篇
  2011年   651篇
  2010年   471篇
  2009年   485篇
  2008年   539篇
  2007年   483篇
  2006年   427篇
  2005年   408篇
  2004年   367篇
  2003年   357篇
  2002年   341篇
  2001年   475篇
  2000年   393篇
  1999年   360篇
  1998年   203篇
  1997年   211篇
  1996年   242篇
  1995年   235篇
  1994年   181篇
  1993年   201篇
  1992年   321篇
  1991年   298篇
  1990年   299篇
  1989年   298篇
  1988年   255篇
  1987年   301篇
  1986年   265篇
  1985年   304篇
  1984年   247篇
  1983年   211篇
  1982年   191篇
  1981年   163篇
  1980年   153篇
  1979年   258篇
  1978年   183篇
  1977年   168篇
  1976年   148篇
  1975年   130篇
  1974年   133篇
  1971年   119篇
排序方式: 共有10000条查询结果,搜索用时 468 毫秒
961.
962.
963.
The aim of the present study is to conduct a systematic review research which focuses on research studies into the school practicum. In order to identify the main issues and also to provide a contemporary picture of practicum, 114 studies published on the topic are reviewed and analysed in terms of: (i) aims, (ii) main participants, (iii) methodology used and (iv) the main outcomes emerging. Many of the reviewed studies take pre-service teachers as their main participants. The review also shows that many practicum studies are relatively small-scale studies since they are mainly qualitative focused and findings derived from a relatively small sample. This suggests that more large-scale studies are needed in the field in order to provide greater insight into teaching practicum. Finally, this systematic review provides some food for thought in the area of practicum research and promotes further studies in this complex field.  相似文献   
964.
965.
966.
Contemporary critiques of student learning research call for new theoretical and methodological approaches. This article proposes a social realist approach to this research, using the morphogenetic theory of sociologist Margaret Archer. The applicability of this approach is demonstrated by reference to an empirical study of engineering students at a South African university, using narrative analysis. In the article itself, two narratives are given in some detail, illustrating the key outlines of the analysis. Students’ emerging personal identities are shown to be highly dependent on their social backgrounds, yet when in the university the possibilities for the morphogenesis of student agency are very constrained. A critical interrogation of these findings proposes that a true higher education should facilitate the development of an enlarged sense of agency for students.  相似文献   
967.
This article studies the relationship between students’ perceptions of teaching and learning in a multidisciplinary honours programme and their impact on graduate attributes acquisition. The study, conducted among 73 honours students in a Dutch research university, evaluates perceived improvement in graduate attributes through annually collected survey data pertaining to student motivation, perception of the teaching and learning environment, engagement in the programme and registered course marks. The evaluation study reveals that to the extent of the perceived development of graduate attributes, three factors play crucial roles: students’ performance motivation, the amount of teacher support in creative and critical thinking, and students’ inclination to approach the honours track as a learning community.  相似文献   
968.
In a typical science degree, little emphasis is placed on the need for scientists to make judgements about evidence and little value is placed on the development of students' opinions about science, with the focus largely on assessment of declarative knowledge. Yet it is the ability to evaluate evidence that is crucial to the development of the student as a scientist. This study assesses the impact on students' conceptions of science of a course that aims to engage students in discussion and reflection on what scientists do and on their own learning about science. Analysis of written reflective assignments from the three years the course has been run shows that participants become more confident in their expression of opinions about science and also develop a more mature view of science and its inherent uncertainty. It appears that a critical factor enabling this development is the way the course activities are designed to explicitly value students' opinions and to provide a supportive environment in which they can be expressed and contested.  相似文献   
969.
Geospatially enabled learning technologies may enhance Earth science learning by placing emphasis on geographic space, visualization, scale, representation, and geospatial thinking and reasoning (GTR) skills. This study examined if and how a series of Web geographic information system investigations that the researchers developed improved urban middle-school learners’ GTR skills and their understanding of tectonics concepts. Paired-sample t tests for analyses of tectonics content knowledge and GTR achievement measures revealed statistically significant gains from pretest to posttest (p <.001) with large effect sizes. The findings provide support that GTR related to tectonics can be learned with appropriately designed learning activities using Web-based geographic information systems.  相似文献   
970.
Development of early math skill depends on a prerequisite level of cognitive development. Identification of specific cognitive skills that are important for math development may not only inform instructional approaches but also inform assessment approaches to identifying children with specific learning problems in math. This study investigated the specific cognitive correlates of math problem solving across early grade levels (1–4) while controlling for basic calculation skills. As expected, basic calculation skill was a significant predictor of math problem solving across the entire sample. However, the addition of cognitive measures almost doubled the variance explained (R2 = .61). Additionally, only select cognitive variables contributed to the prediction of math problem solving, and these variables change in importance as children develop higher‐level math skills. Results are discussed within a developmental model, which emphasizes the increasing importance of abstract code representations required in higher levels of math performance.  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