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   1015篇
  免费   16篇
  国内免费   2篇
教育   825篇
科学研究   35篇
各国文化   24篇
体育   45篇
综合类   2篇
文化理论   1篇
信息传播   101篇
  2023年   3篇
  2022年   3篇
  2021年   7篇
  2020年   24篇
  2019年   18篇
  2018年   34篇
  2017年   46篇
  2016年   26篇
  2015年   23篇
  2014年   33篇
  2013年   216篇
  2012年   30篇
  2011年   35篇
  2010年   36篇
  2009年   30篇
  2008年   33篇
  2007年   23篇
  2006年   22篇
  2005年   25篇
  2004年   26篇
  2003年   31篇
  2002年   41篇
  2001年   17篇
  2000年   15篇
  1999年   9篇
  1998年   13篇
  1997年   15篇
  1996年   9篇
  1995年   12篇
  1994年   12篇
  1993年   15篇
  1992年   13篇
  1991年   10篇
  1990年   12篇
  1989年   10篇
  1988年   10篇
  1987年   11篇
  1986年   3篇
  1985年   5篇
  1984年   5篇
  1983年   6篇
  1982年   5篇
  1981年   5篇
  1980年   7篇
  1979年   7篇
  1978年   7篇
  1977年   10篇
  1976年   7篇
  1975年   4篇
  1919年   2篇
排序方式: 共有1033条查询结果,搜索用时 250 毫秒
11.
12.
Visual cues have an important role in food preference for both rats and humans. Here, we aim to isolate the effects of numerosity, density, and surface area on food preference and running speed in rats, by using a forced-choice maze paradigm. In Experiment 1, rats preferred and ran faster for a group of multiple smaller pellets rather than a single large pellet, corroborating previous research (Capaldi, Miller, & Alptekin Journal of Experimental Psychology: Animal Behavior Processes, 15(1), 75–80, 1989). Further experiments tested the prevailing hypothesis that multiple food pieces are more reinforcing because they occupy a larger surface area. Experiment 2 controlled for numerosity by utilizing a continuous food: mashed potatoes flattened to cover a larger surface area or rounded into a ball. The rats preferred and ran faster for the flattened potatoes, suggesting surface area plays a role in quantity estimations. Finally, in Experiment 3, rats displayed no preference or difference in running speed between a group of scattered and clustered pellets when number of pellets were kept constant. Taken together, these results suggest that density has an important role in food perception—that is, the rewarding effect of higher numerosity or larger surface area is removed when the food does not fill out the entire space. Alternative explanations and implications for human diet are discussed.  相似文献   
13.
14.
15.
16.
Research in Science Education - Students learn more than science knowledge in a science classroom; they also acquire important messages about the purposes and contexts of science. Roberts (2011)...  相似文献   
17.
If children are engaged in science lessons, their learning is likely to be better and, in the long term, careers in science and technology will remain open. Given that attitudes can develop early and be difficult to change, it is important for teachers of younger children to know how to foster engagement in science. This study identified what a cohort of 79 pre-service teachers in England considered to be engaging elementary science lessons and compared their notions with teacher behaviours known to be conducive to engagement. First, all brought beliefs about how to engage children in science lessons to their training. They tended to favour children’s hands-on activity as an effective means of fostering attentive participation in learning, although many had additional ideas. Nevertheless, the means and ends of their ‘pedagogies of engagement’ tended to be simple and narrow. Trainers need to ensure that notions of engagement are wide enough to cope with a variety of teaching situations, as when hands-on experience is not feasible, effective or appropriate. At the same time, teachers will need to recognise that one approach may not suit all learners. Without this, there is the risk that they will lack the skills to engage children in science. Nevertheless, these beliefs could offer a useful starting point for trainers who wish to widen pre-service teachers’ conceptions of engagement and increase their repertoire of teaching behaviours.  相似文献   
18.
19.
The goal was to test a new dual identity perspective on gender identity by asking children (n = 467) in three grades (Mage = 5.7, 7.6, 9.5) to consider the relation of the self to both boys and girls. This change shifted the conceptualization of gender identity from one to two dimensions, provided insights into the meaning and measurement of gender identity, and allowed for revisiting ideas about the roles of gender identity in adjustment. Using a graphical measure to allow assessment of identity in young children and cluster analyses to determine types of identity, it was found that individual and developmental differences in how similar children feel to both genders, and these variations matter for many important personal and social outcomes.  相似文献   
20.
Trade in Australian education services has expanded rapidly over recent years. The sector is the third largest exporter of Australian services. In 2001–2002, exports of education were about $A 4.2 billion. Government assistance to the sector includes export market development, regulation of education standards, and funding education activities; university research and development, for example. This paper examines the case for further government intervention in the export of education, and the appropriate forms of assistance if further government intervention is justified. The paper predominately focuses on assisting higher education exports because this activity dominates education exports.  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