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   1063篇
  免费   15篇
教育   817篇
科学研究   52篇
各国文化   13篇
体育   52篇
综合类   1篇
文化理论   9篇
信息传播   134篇
  2022年   8篇
  2021年   8篇
  2020年   23篇
  2019年   24篇
  2018年   26篇
  2017年   29篇
  2016年   24篇
  2015年   25篇
  2014年   21篇
  2013年   262篇
  2012年   26篇
  2011年   25篇
  2010年   24篇
  2009年   13篇
  2008年   25篇
  2007年   29篇
  2006年   23篇
  2005年   22篇
  2004年   15篇
  2003年   20篇
  2002年   13篇
  2001年   8篇
  2000年   9篇
  1999年   16篇
  1998年   8篇
  1997年   12篇
  1996年   14篇
  1995年   15篇
  1994年   13篇
  1993年   11篇
  1991年   9篇
  1989年   10篇
  1988年   10篇
  1987年   9篇
  1985年   18篇
  1984年   8篇
  1983年   12篇
  1982年   8篇
  1981年   20篇
  1980年   10篇
  1979年   10篇
  1978年   7篇
  1977年   12篇
  1976年   7篇
  1975年   10篇
  1974年   8篇
  1973年   15篇
  1972年   7篇
  1968年   10篇
  1967年   7篇
排序方式: 共有1078条查询结果,搜索用时 15 毫秒
91.
A number of studies have focused on how students and instructors feel about digital learning technologies. This research is focused on the substantive difference in learning outcomes between traditional classrooms and classrooms using clickers. A randomized block experimental design involving four sections of undergraduate Operations Management classes was used to determine if clicker systems increase student learning of both quantitative and conceptual material in Operations Management. Learning was measured using the difference between the scores on an entrance examination and the final examination. The findings of this research provide evidence that the use of immediate feedback using a technology like clickers can have a positive impact on student learning as measured by test scores.  相似文献   
92.
Educational technology research and development - Twelve papers representing 59 authors from 16 different nations are included in this special issue addressing the theme of ‘Learners and...  相似文献   
93.
Withdrawals from college courses prior to the assignment of grades, but after the add-drop period, are analyzed. In a probit model student withdrawals appear to occur randomly with notable exceptions. The more experience a student has in college, the more likely it is that he or she will withdraw from any given course. Students who have withdrawn from courses in the past tend to withdraw again. Student motivation measures are related to the withdrawal decision. Physical and mental disabilities affect withdrawals only in certain courses while athletes are no more likely to withdraw from courses than nonathletes. Finally, there appear to be economies of scale in teaching: The more students an instructor teaches in other courses, the less likely it is that students will withdraw from the course under consideration. The number of students enrolled in the course, however, is not significantly related to withdrawals.  相似文献   
94.
Preschool Children's Judgments about Hypothetical and Actual Transgressions   总被引:1,自引:0,他引:1  
Preschoolers' ( N = 112) judgments about hypothetical and actual moral and conventional transgressions were examined. Equal numbers of boys and girls at 2 ages (3 and 4 years old) either made judgments about 8 hypothetical moral and conventional transgressions or were interviewed on the same dimensions about 8 naturally occurring moral and conventional transgressions they witnessed in their preschools. Children judged both hypothetical and actual moral transgressions to be more serious, punishable, generalizably wrong, and independent of rules and authority than conventional transgressions. Regardless of domain, hypothetical transgressions were judged to be more wrong independent of rules than actual transgressions, and hypothetical (but not actual) moral transgressions were judged to be more independent of rules than conventional transgressions. 3-year-old girls judged the wrongness of actual moral transgressions to be more independent of authority than did 3-year-old boys. Similar findings were obtained when hypothetical and actual transgressions were matched, and domain differences were still obtained when individual items were examined. Findings are discussed in terms of previous research on preschoolers' conceptions of rules and transgressions.  相似文献   
95.
Mechanisms accounting for the effects of mutually responsive orientation (MRO) at 7, 15, and 25 months in 102 mother-child and father-child dyads on child internalization and self-regulation at 52 months were examined. Two mediators at 38 months were tested: parental power assertion and child self-representation. For mother-child relationships, the causal pathway involving power assertion was supported for both outcomes. Diminished power assertion fully mediated beneficial effect of mother-child MRO on internalization and partially mediated its effect on self-regulation. For father-child relationships, MRO predicted self-regulation, but the mediational paths were unsupported. Paternal power assertion correlated negatively with both outcomes but was not a mediator. Although MRO with both parents correlated with child self-representation, and it correlated with self-regulation, this mediational path was unsupported.  相似文献   
96.
Since the 1997 election of the Labour Party to political power in the UK the foci for educational change have been widespread. One area that has received particularly intense scrutiny is that of teacher activity. In particular, the profession has seen a marked rise in the identification of ‘best practice’. As a term ‘best practice’ has entered the parlance of English educational policy to describe that which seemingly has ‘official’ approval. This paper uses a social constructionist perspective to consider how increases in pupil attainment on national tests are currently used to demonstrate better pupil learning. Specifically, it identifies that the use of such data to describe the plausibility, veracity and legitimacy of teaching before the test as ‘best practice’ is questionable. In so doing, the critique argues that ‘best practice’ confers and retains legitimacy due to its self‐perpetuation within the discourse of performance. The paper concludes by offering three areas for further research and debate.  相似文献   
97.
This paper explores recent trends in the size of scientific teams and in institutional collaborations. The data derive from 2.4 million scientific papers written in 110 top U.S. research universities over the period 1981-1999. The top 110 account for a large share of published basic research conducted in the U.S. during this time.We measure team size by the number of authors on a scientific paper. Using this measure we find that team size increases by 50% over the 19-year period. We supplement team size with measures of domestic and foreign institutional collaborations, which capture the geographic dispersion of team workers. The time series evidence suggests that the trend towards more geographically dispersed scientific teams accelerates beginning with papers published at the start of the 1990s. This acceleration suggests a sharp decline in the cost of collaboration. Our hypothesis is that the decline is due to the deployment of the National Science Foundation's NSFNET and its connection to networks in Europe and Japan after 1987.Using a panel of top university departments we also find that private universities and departments whose scientists have earned prestigious awards participate in larger teams, as do departments that have larger amounts of federal funding. Placement of former graduate students is a key determinant of institutional collaborations, especially collaborations with firms and with foreign scientific institutions. Finally, the evidence suggests that scientific output and influence increase with team size and that influence rises along with institutional collaborations. Since increasing team size implies an increase in the division of labor, these results suggest that scientific productivity increases with the scientific division of labor.  相似文献   
98.
99.
Columnist George Will and others have questioned the continuing need for a federal civil rights commission, because civil rights protections have been on the books since 1964. The chairman of the Commission, Gerald Reynolds, here responds that practitioners of critical legal theory, advocates of the Akaka-Secession bill, some proponents of diversity, and others like them may make the continued existence of his commission a necessity.  相似文献   
100.
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