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   1232篇
  免费   29篇
  国内免费   2篇
教育   1030篇
科学研究   34篇
各国文化   21篇
体育   50篇
综合类   1篇
文化理论   5篇
信息传播   122篇
  2023年   6篇
  2021年   9篇
  2020年   16篇
  2019年   39篇
  2018年   36篇
  2017年   49篇
  2016年   49篇
  2015年   33篇
  2014年   40篇
  2013年   254篇
  2012年   22篇
  2011年   21篇
  2010年   19篇
  2009年   36篇
  2008年   35篇
  2007年   31篇
  2006年   27篇
  2005年   28篇
  2004年   28篇
  2003年   33篇
  2002年   27篇
  2001年   23篇
  2000年   32篇
  1999年   25篇
  1998年   21篇
  1997年   16篇
  1996年   26篇
  1995年   18篇
  1994年   23篇
  1993年   12篇
  1992年   23篇
  1991年   16篇
  1990年   12篇
  1989年   16篇
  1988年   15篇
  1987年   14篇
  1986年   11篇
  1985年   16篇
  1984年   16篇
  1983年   7篇
  1982年   10篇
  1981年   19篇
  1980年   4篇
  1979年   6篇
  1978年   5篇
  1976年   3篇
  1975年   3篇
  1974年   7篇
  1970年   5篇
  1889年   3篇
排序方式: 共有1263条查询结果,搜索用时 31 毫秒
21.
Abstract

This study focused on academic and social correlates of collaborator preferences of African American and White sixth-graders in mathematics classrooms in fall and spring. Students’ appraisals of emotional risk were examined as a moderator. Nomination procedures identified collaborator preferences, group affiliations, and social centrality; students self-reported engagement and emotional risk; school records provided achievement scores. Results indicated students preferred group affiliates, but not exclusively, as collaborators. Students with greater centrality, achievement, and engagement received more nominations. In the fall, high achievers received more nominations when appraisals of risk were high; whereas, engaged students whose appraisals of risk were low received more nominations. Results are interpreted in relation to coordinating social and academic factors in peer collaboration.  相似文献   
22.
Various initiatives over the past 40 years have aimed to strengthen children’s early learning and social development. One policy theory—manifest in recent welfare reforms—postulates that requiring single mothers to work more outside the home will advance children’s well-being. We first examine whether young children’s social development is related to maternal employment among 405 women who entered welfare-to-work programs in 1998. For girls, age 24–42 months, we found that their mother’s recent employment duration was significantly associated with a lower incidence of aggressive behavior and inattentiveness, measured by two scales from the Child Behavior Checklist (CBCL 2/3). Yet these relationships with employment were weaker than more robust associations observed for proximal child-rearing practices, including the frequency of reading with the child, enforcing a regular bedtime, the propensity to spank the child, as well as levels of maternal depression. We then assess whether broader measures of the mother’s economic security help to predict these proximal determinants of development. We observed that food security and indicators of job quality consistently predicted the proximal factors. Structural equation models (SEM) provided additional evidence that these broader indicators of economic security, but not recent employment per se, operated through parenting practices and maternal depression to influence girls’ and boys’ social development. These results are consistent with recent findings from random-assignment experiments, showing that employment gains rarely affect child outcomes unless mothers’ income and broader economic security also improve.  相似文献   
23.
24.
A student in a Lamaze Childbirth Educator Program expresses concern that some Lamaze Certified Childbirth Educators (LCCE educators) do not teach classes that reflect Lamaze standards. In this column, the ethical and professional standards of the LCCE educator and the challenges the childbirth educator experiences while practicing in the current maternity-care environment are presented and discussed. Lamaze International's Code of Ethics for Lamaze Certified Childbirth Educators provides guidance when dealing with these challenges.  相似文献   
25.
The purpose of the present study was to explore the possibilities for the assessment of growth in phonological awareness of children in kindergarten and first grade. Phonological awareness was measured using four sets of items involving rhyming, phoneme identification, phoneme blending, and phoneme segmentation. The results of an exploratory factor analysis and analyses conducted within the framework of item response theory showed one latent ability to underlie the different sets of items, which nevertheless differed in difficulty. Analyses in terms of the children’s ability further showed the phonological awareness measures to be sensitive to growth. The amount of information supplied by the different sets of items depended on the children’s level of ability. The conclusion that it is possible to accurately monitor the development of children’s phonological awareness in the early elementary grades appears to be justified, and this possibility opens up new perspectives for the early screening for reading problems and dyslexia.  相似文献   
26.
The purpose of this paper is to compare and contrast characteristics of use and adoption of mobile learning in higher education in developed and developing countries. A comparative case study based on a survey questionnaire was conducted with 189 students (undergraduate and postgraduate) from Makerere University in Uganda and the University of Adelaide in Australia. The Unified Theory of Acceptance and Use of Technology (UTAUT) was employed as the theoretical framework. The results indicated that higher education students in developed and developing countries use a range of technologies for learning, with major differences between Uganda and Australia. The study concludes that mobile learning in higher education in developed and developing country contexts is still at an experimental stage with students using mobile devices in pedagogically limited ways.  相似文献   
27.
28.
29.
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