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   15564篇
  免费   173篇
  国内免费   29篇
教育   10472篇
科学研究   1999篇
各国文化   156篇
体育   1149篇
综合类   11篇
文化理论   127篇
信息传播   1852篇
  2020年   194篇
  2019年   290篇
  2018年   346篇
  2017年   426篇
  2016年   353篇
  2015年   250篇
  2014年   367篇
  2013年   2943篇
  2012年   317篇
  2011年   316篇
  2010年   272篇
  2009年   267篇
  2008年   318篇
  2007年   322篇
  2006年   289篇
  2005年   226篇
  2004年   223篇
  2003年   214篇
  2002年   185篇
  2001年   231篇
  2000年   272篇
  1999年   222篇
  1998年   161篇
  1997年   151篇
  1996年   161篇
  1995年   123篇
  1994年   150篇
  1993年   148篇
  1992年   221篇
  1991年   222篇
  1990年   213篇
  1989年   213篇
  1988年   196篇
  1987年   190篇
  1986年   219篇
  1985年   227篇
  1984年   208篇
  1983年   220篇
  1982年   171篇
  1981年   172篇
  1980年   137篇
  1979年   198篇
  1978年   203篇
  1977年   145篇
  1976年   146篇
  1975年   131篇
  1974年   110篇
  1973年   136篇
  1972年   109篇
  1971年   103篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
Book reviews     
  相似文献   
22.
23.
Educational Assessment, Evaluation and Accountability - Promoting success for all students is the driving force to develop and implement sound teacher evaluation systems. As Stronge suggests,...  相似文献   
24.
The purpose of this study was to describe the development of elementary students' skill in making predictions and of their understanding of what predicting means. The study involved observing and assessing the performance of 167 children on the Physical Manipulation Test (PMT), a test involving the manipulation of science materials and equipment. Children were interviewed about what they understand predicting to mean, how they use it at school and at home, and why they think it is important. For each of the seven topics tested, even the youngest children were able to offer predictions. Accuracy varied with the topic, increasing between Grades 1 and 4 and leveling off after that. The increase in skill involved children's growing ability to attend to patterns discerned through their own observations. Four levels in the development of predicting skill, as it relates to particular topics, are described. Children's understanding of predicting showed steady improvement through Grade 6. Children's awareness of their use of predicting at school and at home, and their ability to explain the importance of predicting, also increased through Grades 1 to 6, with a spurt at Grade 4. Children understood predicting to be an internal process in which one uses knowledge to anticipate a future event; they regarded predicting as an important way of being intellectually involved with the world.  相似文献   
25.
The project of studying children in order to understand them, which lies at the heart of contemporary thinking about children and their education, is misconceived. It rests, jrst of all, upon a false belief that we can only come to know something properly by deliberately and systematically pursuing knowledge of it. Secondly, it offers a paradigm of knowing children which justifies parents and teachers in not giving themselves to children. By re-interpreting the problems that adults experience with children as technical, as arising from lack of information about them, it ignores the personal and moral dimension of adults' relations with children and thus further alienates them from one another.  相似文献   
26.
Do students today know less than their parents or grandparents did as students? Are they being academically outclassed by students of other nations? Or have ideologically driven policy makers painted an unnecessarily negative picture of student achievement?  相似文献   
27.
Chaos theory, informational needs, and natural disasters   总被引:2,自引:0,他引:2  
This study applies chaos theory to a system-wide analysis of crisis communication in a natural disaster. Specifically, we analyze crisis communication during the 1997 Red River Valley flood in Minnesota and North Dakota. This flood, among the worst in modern American history, consumed entire metropolitan areas, displacing thousands of people. The conditions and decisions leading to the disaster, and the subsequent reactions are retraced. Communication related to river crest predictions (fractals), the shock at the magnitude of the crisis (cosmology episode), novel forms of reorganizing (self-organization), and agencies that aided in establishing a renewed order (strange attractors) are evaluated. Ultimately, we argue that preexisting sensemaking structures favoring rationalized, traditional views of a complex system led officials to make inappropriately unequivocal predictions and ultimately diminished the effectiveness of the region's crisis communication and planning.  相似文献   
28.
29.
Book reviews     
Association of Research Libraries  相似文献   
30.
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