全文获取类型
收费全文 | 923篇 |
免费 | 25篇 |
专业分类
教育 | 691篇 |
科学研究 | 23篇 |
各国文化 | 82篇 |
体育 | 29篇 |
文化理论 | 2篇 |
信息传播 | 121篇 |
出版年
2022年 | 4篇 |
2021年 | 4篇 |
2020年 | 17篇 |
2019年 | 29篇 |
2018年 | 36篇 |
2017年 | 45篇 |
2016年 | 37篇 |
2015年 | 22篇 |
2014年 | 26篇 |
2013年 | 200篇 |
2012年 | 26篇 |
2011年 | 33篇 |
2010年 | 28篇 |
2009年 | 28篇 |
2008年 | 26篇 |
2007年 | 32篇 |
2006年 | 29篇 |
2005年 | 15篇 |
2004年 | 21篇 |
2003年 | 13篇 |
2002年 | 20篇 |
2001年 | 12篇 |
2000年 | 24篇 |
1999年 | 16篇 |
1998年 | 7篇 |
1997年 | 12篇 |
1996年 | 14篇 |
1995年 | 16篇 |
1994年 | 18篇 |
1993年 | 19篇 |
1992年 | 11篇 |
1991年 | 17篇 |
1990年 | 6篇 |
1989年 | 4篇 |
1988年 | 4篇 |
1987年 | 6篇 |
1986年 | 7篇 |
1984年 | 6篇 |
1983年 | 5篇 |
1982年 | 5篇 |
1981年 | 4篇 |
1980年 | 5篇 |
1979年 | 8篇 |
1977年 | 2篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1972年 | 3篇 |
1971年 | 2篇 |
1970年 | 3篇 |
1866年 | 2篇 |
排序方式: 共有948条查询结果,搜索用时 15 毫秒
41.
42.
43.
44.
45.
46.
47.
Katrina Ferrara Kathy Hirsh‐Pasek Nora S. Newcombe Roberta Michnick Golinkoff Wendy Shallcross Lam 《Mind, Brain, and Education》2011,5(3):143-151
Spatial skills are a central component of intellect and show marked individual differences. There is evidence that variations in the spatial language young children hear, which directs their attention to important aspects of the spatial environment, may be one of the mechanisms that contributes to these differences. To investigate how play affects variations in language, parents and children were assigned to 1 of 3 conditions: free play with blocks, guided play, or play with preassembled structures (Study 1). Parents in the guided play condition produced significantly higher proportions of spatial talk than parents in the other two conditions, and children in the guided play condition produced significantly more spatial talk than those in the free play condition. Study 2 established baselines of spatial language during activities not involving spatial materials. Proportions of spatial words were lower than those in any of the conditions of Experiment 1. In sum, interaction with blocks naturally elicits elevated levels of spatial language, especially in the context of guided play, suggesting simple‐to‐execute educational interventions. 相似文献
48.
Soo-yong Byun Matthew J. Irvin Bethany A. Bell 《Journal of Experimental Education》2015,83(4):439-468
Using data from the Educational Longitudinal Study of 2002–2006, the authors investigated the effects of advanced math course taking on math achievement and college enrollment and how such effects varied by socioeconomic status and race/ethnicity. Results from propensity score matching and sensitivity analyses showed that advanced math course taking had positive effects on math achievement and college enrollment. Results also demonstrated that the effect of advanced math course taking on math achievement was greater for low socioeconomic status students than for high socioeconomic status students, but smaller for Black students than for White students. No interaction effects were found for college enrollment. Limitations, policy implications, and future research directions are discussed. 相似文献
49.
50.
We designed Knowledge Integration Environment (KIE) debate projects to take advantage of internet resources and promote student understanding of science. Design decisions were guided by the Scaffolded Knowledge Integration instructional framework. We report on design studies that test and elaborate on our instructional framework. Our learning studies assess the arguments students construct using the Knowledge Integration Environment debate project about light propagation and, explore the relationship between students' views of the nature of science and argument construction. We examine how students use evidence, determine when they add further ideas and claims and measure progress in understanding light propagation. To a modeate degree, students' views of the nature of science align with the quality of the arguments. 相似文献