全文获取类型
收费全文 | 3858篇 |
免费 | 73篇 |
专业分类
教育 | 2966篇 |
科学研究 | 175篇 |
各国文化 | 45篇 |
体育 | 242篇 |
综合类 | 1篇 |
文化理论 | 17篇 |
信息传播 | 485篇 |
出版年
2023年 | 22篇 |
2022年 | 32篇 |
2021年 | 51篇 |
2020年 | 100篇 |
2019年 | 152篇 |
2018年 | 194篇 |
2017年 | 194篇 |
2016年 | 160篇 |
2015年 | 105篇 |
2014年 | 146篇 |
2013年 | 877篇 |
2012年 | 103篇 |
2011年 | 93篇 |
2010年 | 76篇 |
2009年 | 92篇 |
2008年 | 97篇 |
2007年 | 82篇 |
2006年 | 104篇 |
2005年 | 78篇 |
2004年 | 92篇 |
2003年 | 52篇 |
2002年 | 59篇 |
2001年 | 49篇 |
2000年 | 53篇 |
1999年 | 53篇 |
1998年 | 36篇 |
1997年 | 41篇 |
1996年 | 47篇 |
1995年 | 26篇 |
1994年 | 45篇 |
1993年 | 29篇 |
1992年 | 30篇 |
1991年 | 25篇 |
1990年 | 27篇 |
1989年 | 23篇 |
1988年 | 21篇 |
1987年 | 23篇 |
1986年 | 23篇 |
1985年 | 27篇 |
1984年 | 27篇 |
1983年 | 19篇 |
1982年 | 17篇 |
1981年 | 19篇 |
1980年 | 13篇 |
1979年 | 30篇 |
1978年 | 12篇 |
1977年 | 20篇 |
1974年 | 14篇 |
1973年 | 11篇 |
1972年 | 11篇 |
排序方式: 共有3931条查询结果,搜索用时 0 毫秒
21.
This article reports the results of research to determine if a significant interactive effect exists between students' lingual background (English as a primary language [EPL] versus English as a secondary language [ESL]) and question format on students' examination scores. Students were administered examinations made up of four subtests covering the same subject matter. The subtests were composed of four question formats: multiple choice quantitative, multiple choice theoretical, open-ended quantitative, and open-ended essay questions. Based on analysis of variance and analysis of covariance, significant differences were observed between EPL and ESL students depending on the type of question on the examination. 相似文献
22.
Robert J. Jones Ph.D. Kenneth J. Gruber Ph.D. Gary D. Timbers Ph.D. 《Child abuse & neglect》1981,5(4):431-440
This study reports the results of extensive interviews with an intact sample of moderately delinquent adolescents concerning their sexual assault histories. Findings indicate a surprisingly high incidence of victimization among the females interviewed which, the authors suggest, may characterize the larger population of delinquent females. The behavioral-situational contexts of reported victimization experiences are examined for salient commonalities and the following composite rape scenerio can be cast from the data: An unsupervised, 14-year-old female, who has been consuming alcohol or marijuana, is sexually assaulted, following threat and/or force, to the point of penile-vaginal penetration, by an older male friend or acquaintance (who has also consumed alcohol or marijuana) in his home or vehicle or other place where she is inherently unprotected. Some comments are offered concerning the requirements of an effective technology of child rape prevention. 相似文献
23.
24.
This study, situated in a multilingual, English-medium educational context, draws on theory from mathematics and language education to capture teachers’ perspectives on the place of language in their mathematics pedagogy. The benchmark study explored this topic through surveying and interviewing teachers. Additionally, it sought to relate teachers’ views to their practice by focusing on observing three teachers’ mathematics lessons at primary one, three, and five. Findings are that mathematics teachers placed importance on teaching language, being specifically concerned with language as input and comprehension. They taught vocabulary and reading skills in supportive ways explicitly yet differently at the three grade levels. Particularly at the lower levels, teachers contextualised language in the concrete examples employed for mathematics teaching. At all three levels, prominence was given to teaching pupils how to read word problems as well as how to solve them. However, at primary three, a tension was observed between the two aims of teaching mathematical vocabulary and teaching the reading skills for word problems. This paper illustrates the tension and discusses its possible causes. 相似文献
25.
No abstract available for this article. 相似文献
26.
Elizabeth A. van Es 《学习科学杂志》2013,22(1):100-137
This study examines the nature of teacher participation in the context of a video club. Video clubs are professional development meetings in which teachers watch and discuss excerpts of video from their classrooms. In this study, I adopt a situative perspective to examine how teachers develop in their participation to accomplish the goals of the video club. In particular, I examine the roles participants play and explore teachers' participation in four roles that correspond with key goals of the video club. Analysis revealed that teachers' participation shifted in qualitatively different ways over time, with the teachers coming to prompt the group to discuss student mathematical thinking, to propose a variety of interpretations of student ideas, to build on one another's ideas, and to challenge one another's thinking in order to advance the group's conversations. This analysis suggests that the group learned how to participate in roles central to accomplishing the goals of the video club. Studying teacher learning through a lens of participation provides insight into the ways in which teachers coordinate themselves to engage with the goals of professional development and has implications for designing professional development that helps teachers develop practices for teaching mathematics for understanding. 相似文献
27.
Elizabeth DeBray 《Equity & Excellence in Education》2013,46(3):264-277
This article consists of a case study and policy analysis of a conflict between two federal mandates that arose during the initial implementation of the No Child Left Behind Act in 2002 in a southern school system, Richmond County, Georgia. The first part of the article documents the conflict, drawing on primary source documents and interviews with the school superintendent and school board attorney. A U.S. District court judge ruled that the 1972 court order that had mandated county-wide school desegregation was in conflict with No Child Left Behind's public school transfer policy and granted the county a one-year delay so that the school system could study the policy's likely effects. The U.S. Department of Education's response to the judge's ruling instigated a situation that led to a federal-local political disagreement, whose origins and resolution are described. In the article's second section, the author places these events into broader historical perspective, arguing that they reveal how federal policy in elementary and secondary education has shifted during the intervening decades since the Elementary and Secondary Education Act's enactment in 1965. The case highlights the changing federal-district relationship, the equitable implementation of the No Child Left Behind public school choice provision, and the nature of federal authority in education policy, and how it is currently being exercised by the Bush administration. 相似文献
28.
Elizabeth Donovan Jack Hernandez Emil Chiauzzi Pronabesh DasMahapatra Tyler Achilles Amanda Hemm 《Community College Journal of Research & Practice》2013,37(10):821-825
Health is associated with academic success. Universal, web-based interventions to reduce risks associated with alcohol and other drug use have been found to be effective at changing four-year college students’ health behaviors. An online health program may also be well-suited to a community college population, as it can reach students off campus and can be accessed at times that are convenient for students. The purpose of the current paper is to report the results of a community college student evaluation of a fully-developed, online health risk reduction program. One hundred and thirty four students evaluated the program. Students perceived the program to be successful at addressing college health and wellness issues, and they considered it a tool that could help students make a healthy adjustment to college. A universal, online, health-risk reduction program may have the potential to be a useful component of a community college's overall prevention strategy. 相似文献
29.
This study replicates research on the efficacy of a repeated reading intervention with word-level instruction for students in Grades 2 and 3 with low to moderate fluency skills, examines differences between treatment implementers, and tests unique contributions of treatment-related variables on outcomes. Students from 13 schools were randomly assigned to dyads; dyads were randomly assigned to treatment or control conditions. Schools were matched into treatment implementer groups (teachers or paraeducators) at study onset. Tutoring occurred during school hours for 15 weeks (M = 25.5 hr). Multilevel model results showed treatment students (n = 98) gained more than controls (n = 104) on measures of letter-sound knowledge (d = .41), fluency (d = .37–.38), and comprehension (d = .30–.31); students tutored by teachers gained more than their paraeducator-tutored peers on word reading and fluency. Finally, dyads tutored with greater fidelity gained more in word reading and fluency; dyads that read more complex words in their texts gained less on letter-sounds, fluency, and comprehension. 相似文献
30.
Arthur L. Odom Elizabeth R. Stoddard Steven M. LaNasa 《International Journal of Science Education》2013,35(11):1329-1346
We report on the construction and application on an instrument entitled the “Science Achievement Influences Survey” to assess combined effects of student attitudes about science, peer interaction, and home support, and the frequency of student‐centred and teacher‐centred instructional practices on student achievement. Controlling for pre‐test content knowledge, results indicated that student‐centred teaching practices have a positive association with student achievement (p < .01; i.e., group experiments) and a negative association with teacher‐centred teaching practices (p < .01; i.e., copying notes). Additionally, student attitudes about science were positively associated with student‐centred teaching practices (p < .01) and negatively associated with teacher‐centred teaching practices (p < .01). Most significantly, this study documents the predicted gains in science achievement associated with frequency of specific instructional practices used by middle‐school science teachers. Especially noteworthy and significant is the finding that near‐daily implementation of group experiments and reduction of extensive note‐copying during class yield the greatest positive impact on student achievement. Outside of school, peer interaction and home support were not significantly associated (p > .05) with student achievement. The student sample included 611 middle‐school science students with a wide range of socioeconomic and cultural backgrounds. 相似文献