全文获取类型
收费全文 | 4561篇 |
免费 | 67篇 |
国内免费 | 2篇 |
专业分类
教育 | 3349篇 |
科学研究 | 320篇 |
各国文化 | 69篇 |
体育 | 371篇 |
综合类 | 3篇 |
文化理论 | 55篇 |
信息传播 | 463篇 |
出版年
2023年 | 18篇 |
2022年 | 19篇 |
2021年 | 45篇 |
2020年 | 84篇 |
2019年 | 137篇 |
2018年 | 150篇 |
2017年 | 148篇 |
2016年 | 132篇 |
2015年 | 91篇 |
2014年 | 147篇 |
2013年 | 1043篇 |
2012年 | 102篇 |
2011年 | 110篇 |
2010年 | 93篇 |
2009年 | 104篇 |
2008年 | 107篇 |
2007年 | 99篇 |
2006年 | 111篇 |
2005年 | 106篇 |
2004年 | 98篇 |
2003年 | 103篇 |
2002年 | 78篇 |
2001年 | 67篇 |
2000年 | 83篇 |
1999年 | 74篇 |
1998年 | 72篇 |
1997年 | 58篇 |
1996年 | 58篇 |
1995年 | 47篇 |
1994年 | 54篇 |
1993年 | 50篇 |
1992年 | 51篇 |
1991年 | 52篇 |
1990年 | 51篇 |
1989年 | 55篇 |
1988年 | 52篇 |
1987年 | 47篇 |
1986年 | 36篇 |
1985年 | 34篇 |
1984年 | 48篇 |
1983年 | 39篇 |
1982年 | 32篇 |
1981年 | 27篇 |
1980年 | 26篇 |
1979年 | 38篇 |
1978年 | 32篇 |
1977年 | 26篇 |
1976年 | 28篇 |
1974年 | 22篇 |
1973年 | 20篇 |
排序方式: 共有4630条查询结果,搜索用时 625 毫秒
71.
72.
73.
David A. Child Thomas M. Duffy Sonny Kirkley Lori Hubbard 《Journal of Science Education and Technology》1997,6(3):161-171
We examined the implementation of a laser-disk based science curriculum in an elementary school. The goal was to develop a richer understanding of the principles for designing a curriculum that will adequately support teachers in adopting a learner-centered framework. Issues included: who has ownership of the classroom discussion; what types of activities are engaged in terms of the constraints imposed; and what is the teacher's response to the specific tools provided (the teacher's guide, the Circle of Learning, and concept maps). In addition to looking at the implementation pattern, we also examined the impact of the implementation on student attitudes and anxiety toward science. Results indicated little adoption of the curriculum, and teachers continued to maintain a high degree of control in the classroom. However, results also indicated significant effects of the curriculum on science attitude and anxiety. Suggestions for future research are included. 相似文献
74.
Thomas H. Reynolds Curtis Jay Bonk 《Educational technology research and development : ETR & D》1996,44(3):83-97
Recent research into composing processes has focused on instructional intervention strategies that promote effective composition practices within computerized writing environments. The field of computers and composition has benefitted both from advances in computing tools and developments in learning theory. The innovative computer tool discussed in this paper uses the macro-command language of a full-featured word processor to enact strategic support designed to help writers with their written work. From a theoretical standpoint, this tool created a writing environment based on Vygotskian theory of mediated learning and was grounded in an instructional strategy known as “procedural facilitation.” To evaluate the effectiveness of this computerprompting tool, a second macro application was used to log student keystrokes, thereby tracking student writing development, revisionary practices, and keystroke reactions to the prompting partner. Students using the prompting tool enacted divergent and convergent thinking assistance that appeared at the bottom of their computer screens while the system saved a process record of their keystrokes. Procedures for creating macro-driven prompting programs and keystroke-logging devices are discussed. Additionally, a catalog of prompts and summary of keystroke-mapping benefits are provided. Finally, our research using the macro-driven prompting partner and keystroke-register tool is detailed. 相似文献
75.
We designed from scratch a minimal manual of the kind proposed by Carroll (1990) for Unix e-mail. The design process involved acquiring from a set of experts information about e-mail use that would be helpful to novices, and acquiring from novices information that guided subsequent versions of the manual. The seventh version of the minimal manual was tested against a commercial manual, in a comparative performance experiment, with 30 naive subjects. It had approximately 13% of the pages of the commercial manual; it resulted in 30% faster learning and more effective use of the e-mail system overall, and significantly better performance on individual subtasks; including the recovery from errors. Significantly more users were satisfied with it than with the conventional manual. Carroll's general principles of manual design for minimal manuals were found to be a good basis for design, and we suggest these guidelines are suitable for the design of such manuals from scratch. 相似文献
76.
Judith Armstrong 《Children‘s Literature in Education》1978,9(2):59-66
The relationship of past and present and the linking of characters through time and place are themes that underlie the work of many writers for children. This article considers the use of the Ghost as a literary device to allow the exploration of what is, what has been, and what might have been, particularly in the 1973 Carnegie Medal Winner,The Ghost of Thomas Kempe, by Penelope Lively.Judith Armstrong was brought up in Lancashire. She has travelled widely, and taught young children in England and Ethiopia. She is currently working on themes associated with the supernatural in children's books. 相似文献
77.
78.
Pigeons were trained on two independent tasks. One involved red and yellow hues, the other involved blue and green hues. For half of the birds, the two tasks were the same (i.e., both tasks were either matching-to-sample, or oddity-from-sample). For the remaining birds, the two tasks were different (i.e., one task was matching-to-sample; the other task was oddity-from-sample). Following acquisition, the pigeons were exposed to test trials on which either the correct or the incorrect comparison hue was replaced with one of the hues from the other task. On yellow-sample trials and on green-sample trials, the pigeons performed as if they had a common code for yellow and green. When there was one comparison available that was appropriate to the “yellow/green” code, performance remained high; but when either both comparisons or neither comparison was appropriate to the “yellow/green” code, performance dropped. The pigeons also tended to code red samples as green and to code blue samples as yellow. The results indicate that pigeons can categorically code colors under conditions that rule out a failure to discriminate among the colors. 相似文献
79.
This study investigated patterns of college attendance using data from a nationwide and contemporary sample of 2112 rural youth. We found that more than half of rural youth attended two-year institutions at some point during their college career and about a fourth initially enrolled in a two-year college before enrolling in a four-year college. Results also revealed that parental education, college preparatory track and preparation experiences, and teacher expectations predicted students’ college attendance patterns. Our findings point to the importance of two-year colleges and highlight the influence of family characteristics and students’ schooling experiences in the postsecondary trajectories of rural youth. 相似文献
80.