全文获取类型
收费全文 | 5891篇 |
免费 | 60篇 |
国内免费 | 5篇 |
专业分类
教育 | 4366篇 |
科学研究 | 364篇 |
各国文化 | 113篇 |
体育 | 376篇 |
综合类 | 4篇 |
文化理论 | 61篇 |
信息传播 | 672篇 |
出版年
2020年 | 55篇 |
2019年 | 105篇 |
2018年 | 108篇 |
2017年 | 169篇 |
2016年 | 139篇 |
2015年 | 101篇 |
2014年 | 111篇 |
2013年 | 1453篇 |
2012年 | 123篇 |
2011年 | 110篇 |
2010年 | 102篇 |
2009年 | 120篇 |
2008年 | 142篇 |
2007年 | 128篇 |
2006年 | 116篇 |
2005年 | 111篇 |
2004年 | 112篇 |
2003年 | 109篇 |
2002年 | 95篇 |
2001年 | 63篇 |
2000年 | 74篇 |
1999年 | 59篇 |
1998年 | 64篇 |
1997年 | 70篇 |
1996年 | 73篇 |
1995年 | 71篇 |
1994年 | 76篇 |
1993年 | 71篇 |
1992年 | 69篇 |
1991年 | 77篇 |
1990年 | 76篇 |
1989年 | 77篇 |
1988年 | 67篇 |
1987年 | 63篇 |
1986年 | 69篇 |
1985年 | 57篇 |
1984年 | 61篇 |
1983年 | 85篇 |
1982年 | 60篇 |
1981年 | 63篇 |
1980年 | 68篇 |
1979年 | 59篇 |
1978年 | 80篇 |
1977年 | 63篇 |
1976年 | 49篇 |
1975年 | 51篇 |
1973年 | 43篇 |
1970年 | 48篇 |
1969年 | 41篇 |
1966年 | 39篇 |
排序方式: 共有5956条查询结果,搜索用时 312 毫秒
101.
102.
Robert W. Powell 《Learning & behavior》1974,2(3):185-188
Neither domesticated hooded rats nor wild black rats responded appreciably for water on a CRF schedule when free water was available. However, four out of five crows showed substantial responding for food in the presence of identical free food. Previous reports also indicate that type of reinforcer and species are variables which significantly influence this phenomenon. Nevertheless, the overall findings seem to be amenable to an explanation based upon incentive-motivation theory. 相似文献
103.
104.
Rhonda N. T. Nese Paul Meng Sarah Breiner Erin Chaparro Robert Algozzine 《Journal of Research on Technology in Education》2020,52(2):148-162
AbstractTraditional professional development is often characterized as being expensive, time consuming, and lacking impact. In contrast, online professional development provides greater flexibility and is becoming increasingly popular for school personnel. In this article, we report the process and outcomes of gathering feedback to adapt traditional in-person to online training differentiated for the participants to maximize utility, efficiency, and effectiveness in meeting the needs of key stakeholders. Focus groups were conducted with teachers, administrators, and other specialists to gather feedback on content as well as how online learning modules (OLMs) could be tailored to meet specific school site and team needs. We discuss our findings in the context of continuing efforts to improve general and specific professional development opportunities. 相似文献
105.
Learning science through writing: associations with prior conceptions of writing and perceptions of a writing program 总被引:1,自引:0,他引:1
Students in a large undergraduate biology course were expected to write a scientific report as a key part of their course design. This study investigates the quality of learning arising from the writing experience and how it relates to the quality of students’ preconceptions of learning through writing and their perceptions of their writing program that led to their report. Closed‐ended questionnaires investigating student conceptions and perceptions of writing, and approaches to writing, were completed by 121 students. Significant associations were found amongst qualitatively different prior and post conceptions of writing, approaches to writing and achievement. The results of the analyses suggest that the effective support of student experiences of writing reports requires teachers to be aware of the type of conceptions that students bring to their course and the perceptions they hold about the purpose of the writing program in which they are engaged. 相似文献
106.
Kikumi K. Tatsuoka Robert L. Linn Maurice M. Tatsuoka Kentaro Yamamoto 《Journal of Educational Measurement》1988,25(4):301-319
The present study investigates the degree to which item "bias" techniques can lead to interpretable results when groups are defined in terms of specified differences in the cognitive processes involved in students' problem-solving strategies. A large group of junior high school students who took a test on subtraction of fractions was divided into two subgroups judged by the rule-space model to be using different problem-solving strategies. It was confirmed by use of Mantel-Haenszel (MH) statistics that these subgroups showed different performances on items with different underlying cognitive tasks. We note that, in our case, we are far from faulting items that show differential item functioning (D1F) between two groups defined in terms of different solution strategies. Indeed, they are "desirable" items, as explained in the discussion section 相似文献
107.
108.
Robert B. Bums 《The Australian Educational Researcher》1989,16(4):69-78
One hundred and eighty-one teacher training students sat three attitude measuring instruments to investigate the relationships between attitudes to self, attitudes to others and attitudes to educational practices. Clinical studies within the ambit of Rogerian psychotherapy suggest that a relationship between self and other attitudes should be positive. Substantial and statistically significant positive correlations, in the order of p<0.01, emerged consistently in this study between attitudes to self and attitudes to a range of others and to progressive child centred educational practices. Self acceptance level would seem to be an index of attitudes to a wide range of others. This relationship provides a principle of utmost importance for human relationships since the application of psychological processes to enhance the self concept should facilitate as a corollary a decrease in interpersonal tensions and inter group conflict. This relationship is of particular consequence in the teaching context since teaching is a sharing of self with others. The results of the study suggest that those with low self acceptance prefer (p<0.01) to avoid close encounters with pupils and prefer a more traditional formal teaching style. 相似文献
109.
110.
Homework gives students an opportunity to practice important college‐level physics skills. A switch to Web‐based homework alters the nature of feedback received, potentially changing the pedagogical benefit. Calculus‐ and algebra‐based introductory physics students enrolled in large paired lecture sections at a public university completed homework of standard end‐of‐the‐chapter exercises using either the Web or paper. Comparison of their performances on regular exams, conceptual exams, quizzes, laboratory, and homework showed no significant differences between groups; other measures were found to be strong predictors of performance. This indicates that the change in medium itself has limited effect on student learning. Ways in which Web‐based homework could enable exercises with greater pedagogical value are discussed. © 2003 Wiley Periodicals, Inc. J Res Sci Teach 40: 1050–1071, 2003 相似文献