全文获取类型
收费全文 | 17524篇 |
免费 | 95篇 |
国内免费 | 6篇 |
专业分类
教育 | 13333篇 |
科学研究 | 1570篇 |
各国文化 | 100篇 |
体育 | 818篇 |
综合类 | 4篇 |
文化理论 | 471篇 |
信息传播 | 1329篇 |
出版年
2023年 | 16篇 |
2022年 | 27篇 |
2021年 | 72篇 |
2020年 | 159篇 |
2019年 | 207篇 |
2018年 | 2354篇 |
2017年 | 2296篇 |
2016年 | 1777篇 |
2015年 | 255篇 |
2014年 | 295篇 |
2013年 | 1404篇 |
2012年 | 393篇 |
2011年 | 872篇 |
2010年 | 975篇 |
2009年 | 573篇 |
2008年 | 811篇 |
2007年 | 1299篇 |
2006年 | 215篇 |
2005年 | 542篇 |
2004年 | 575篇 |
2003年 | 488篇 |
2002年 | 254篇 |
2001年 | 111篇 |
2000年 | 127篇 |
1999年 | 69篇 |
1998年 | 67篇 |
1997年 | 101篇 |
1996年 | 88篇 |
1995年 | 61篇 |
1994年 | 76篇 |
1993年 | 64篇 |
1992年 | 78篇 |
1991年 | 67篇 |
1990年 | 63篇 |
1989年 | 52篇 |
1988年 | 60篇 |
1987年 | 44篇 |
1986年 | 55篇 |
1985年 | 61篇 |
1984年 | 59篇 |
1983年 | 60篇 |
1982年 | 47篇 |
1981年 | 40篇 |
1980年 | 41篇 |
1979年 | 45篇 |
1978年 | 47篇 |
1977年 | 29篇 |
1976年 | 26篇 |
1975年 | 18篇 |
1948年 | 18篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
951.
The present exploratory investigation is an extension of a 1985 study that evaluated a Scholastic Aptitude Test preparation program involving black urban students. The present study was conducted to determine if there are identifiable characteristics of quantitative items associated with a susceptibility to coaching. Items showing p-value improvements of. 10 after coaching were compared with items not showing such improvements; comparisons were made in terms of the content, type. format, level of cognitive requirement, and position of the items. Items showing improvement were found across content areas, formats, and type. Findings are discussed in relation to the usefulness and improvement of well-designed supplemental instructional programs that have the potential to affect criterion performance in mathematics 相似文献
952.
953.
954.
955.
The research literature on educational constructivism is voluminous (see the Carmichael (1990) Pfundt & Duit (1994) and Driver et al. (1994b) bibliographies cited below). The research - in both the Piagetian and Alternative Conception traditions - covers children's learning, cognitive development, curriculum development, classroom practices, teacher education, and much else. There is a further enormous literature on constructivism in philosophy of science (see Leplin (1984) and Churchland & Hooker (1985)), and on constructivism in the sociology of science (see Brown (1984), McMullin (1988, 1992). In turn these latter literatures overlap with the ocean of writing on post-modernist theory of knowledge and cognition (see Gross & Levitt (1994)). The following references relate mostly to educational constructivism, and then, with some exceptions, to articles that address epistemological and philosophical matters in science education. Even so it is not an exhaustive list, but hopefully it will be useful for teachers and researchers in the field. The author welcomes additions or omissions being brought to his attention. 相似文献
956.
957.
958.
Minerva - The universities of Oxford and Cambridge had developed different attitudes towards the award of honorary degrees through the early and middle decades of the twentieth century. Recently,... 相似文献
959.
Reconsidering the notion of distance in distance education 总被引:1,自引:1,他引:0
J. Michael Spector 《Distance Education》2009,30(1):157-161
960.