全文获取类型
收费全文 | 26223篇 |
免费 | 452篇 |
国内免费 | 41篇 |
专业分类
教育 | 18783篇 |
科学研究 | 2344篇 |
各国文化 | 303篇 |
体育 | 2064篇 |
综合类 | 35篇 |
文化理论 | 238篇 |
信息传播 | 2949篇 |
出版年
2022年 | 136篇 |
2021年 | 261篇 |
2020年 | 430篇 |
2019年 | 600篇 |
2018年 | 833篇 |
2017年 | 902篇 |
2016年 | 860篇 |
2015年 | 516篇 |
2014年 | 674篇 |
2013年 | 5411篇 |
2012年 | 649篇 |
2011年 | 737篇 |
2010年 | 572篇 |
2009年 | 553篇 |
2008年 | 624篇 |
2007年 | 594篇 |
2006年 | 523篇 |
2005年 | 482篇 |
2004年 | 452篇 |
2003年 | 397篇 |
2002年 | 453篇 |
2001年 | 483篇 |
2000年 | 455篇 |
1999年 | 467篇 |
1998年 | 251篇 |
1997年 | 270篇 |
1996年 | 275篇 |
1995年 | 249篇 |
1994年 | 242篇 |
1993年 | 213篇 |
1992年 | 326篇 |
1991年 | 350篇 |
1990年 | 368篇 |
1989年 | 335篇 |
1988年 | 304篇 |
1987年 | 270篇 |
1986年 | 273篇 |
1985年 | 349篇 |
1984年 | 285篇 |
1983年 | 267篇 |
1982年 | 195篇 |
1981年 | 198篇 |
1980年 | 173篇 |
1979年 | 252篇 |
1978年 | 223篇 |
1977年 | 203篇 |
1976年 | 167篇 |
1975年 | 145篇 |
1974年 | 128篇 |
1973年 | 152篇 |
排序方式: 共有10000条查询结果,搜索用时 703 毫秒
971.
A. Sterl Artley 《Journal of Experimental Education》2013,81(3):181-186
One explanation for why many students routinely choose to do their homework with a radio or TV operating is that this distraction facilitates studying. To investigate the validity of this explanation, the authors carried out two experiments with sixth-grade students who worked on two difficulty levels of individualized mathematics assignments (N = 12) and reading assignments (N = 9) under three distraction conditions: quiet; self-selected, self-regulated radio; and self-selected, self-regulated TV. The data yielded no evidence of sizable distractor effects on students' time spent studying, computational accuracy, reading comprehension, or reading rate. These results generally are consistent with the theoretical conceptualization of attention as flexible and adaptable. 相似文献
972.
973.
974.
975.
976.
I. A. Anderton 《Educational Media International》2013,50(3):4-10
A system is simply a collection of things connected together. Systems thinking refers to the habit of concentrating on how these collections act, and interact, together. Usually we are particularly concerned with how effective they are in the pursuit of certain goals. 相似文献
977.
978.
979.
980.
Several studies concluded that deep reflection is infrequently reached in student portfolios. An explanation for these disappointing conclusions might be that motivation for portfolio reflection determines the quality of reflection. This study aimed to examine the relationship between motivation for using digital portfolios and reflection. Participants were 156 eleventh-grade students in secondary education, whose motivation for composing a digital portfolio was measured by the motivation part of the Motivated Strategies for Learning Questionnaire. Portfolios of 37 of the 156 students were examined in terms of the amount and nature of reflection by means of a coding scheme based on Mezirow's model of transformative learning. On average, one-fifth (19.5%) of the paragraphs in a portfolio contained reflection, and paragraphs with deep reflection were hardly found (0.8%). It was concluded that motivation for composing a portfolio was fair, but not related to the amount and nature of reflection. This exploratory study gives rise to further research into factors that might influence the quality of portfolio reflection. 相似文献