首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   17063篇
  免费   923篇
  国内免费   312篇
教育   9285篇
科学研究   4361篇
各国文化   87篇
体育   750篇
综合类   565篇
文化理论   22篇
信息传播   3228篇
  2024年   34篇
  2023年   150篇
  2022年   305篇
  2021年   495篇
  2020年   680篇
  2019年   629篇
  2018年   458篇
  2017年   463篇
  2016年   598篇
  2015年   530篇
  2014年   898篇
  2013年   1380篇
  2012年   1224篇
  2011年   1243篇
  2010年   856篇
  2009年   795篇
  2008年   985篇
  2007年   1126篇
  2006年   1071篇
  2005年   927篇
  2004年   852篇
  2003年   722篇
  2002年   574篇
  2001年   484篇
  2000年   281篇
  1999年   117篇
  1998年   108篇
  1997年   93篇
  1996年   57篇
  1995年   32篇
  1994年   24篇
  1993年   37篇
  1992年   34篇
  1991年   7篇
  1990年   2篇
  1989年   3篇
  1987年   8篇
  1985年   2篇
  1981年   1篇
  1980年   1篇
  1979年   4篇
  1978年   1篇
  1977年   2篇
  1957年   5篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
The paper provides a first person account of participant evaluation research of curriculum innovation in a school serving students with profound learning difficulties. It describes how the aspirations of the school leadership team to introduce science, combined with advisory support, overcame the initial anxiety of teaching staff about teaching an unfamiliar subject. The staff position was transformed and they gave a very positive evaluation of their experiences of teaching science, due to the impact of the subject on their students. The introduction of a distinct and inclusive model of science into the curriculum was ultimately found to have significant benefits for both students and staff.  相似文献   
12.
[目的/意义] 探索构建文献情报大数据知识资源体系,支撑面向多领域的智慧知识服务。[方法/过程] 基于AI应用需求,借鉴业界经验,梳理现有资源体系的问题,从多层次多维度扩展资源体系;构建可靠数据处理流程和计算平台,支持高效数据采集和处理;研发智能化数据治理工具,实现知识资源的有效治理,确保提供高质量数据资源。[结果/结论] 已初步形成覆盖多类型、多学科的科技文献大数据知识资源体系,构建完成高度自动化的数据采集治理流程,实施多重数据质量控制,积累数亿高质量数据,且为多个知识服务提供数据支撑。  相似文献   
13.
The development of three-dimensional learning among all K-12 student demographics remains a prominent goal for the field of science education. However, substantial research in science teacher education for urban populations showcases hurdles to overcome in order to achieve this goal, particularly for elementary teachers. Research shows that urban elementary teachers are often ill-prepared to develop a type of science pedagogy responsive to students' learning needs. The fidelity of such pedagogies that these teachers adhere to when trying to implement such a requested content–relationality between these populations and how their local contexts can be used as sites to learn science in relevant ways are often not fully realized, as well. Given that science achievement gaps exhibit racial disparities starting in primary grades and attitudes toward science have been shown to affect academic achievement and motivation, we argue that one way to ameliorate, in at least an incremental way, this disparity is to design novel learning experiences to prime students to see the relevancy of science in their local contexts before such three-dimensional designed learning is set to occur. In this research, we leveraged the immersive nature of Virtual Reality 360 videos and present a design-based research iteration testing how this novel technologically enhanced learning experience may have influenced close to 400 urban elementary students' attitudes toward science around those attitudes labeled as “behavioral beliefs” by the field. Using a concurrent, convergent mixed-methods design with a two-way multivariate analysis of covariance quantitative data set triangulated with students' qualitative self-reports that were transformed into quantitative preponderances in graphic form, the data support that our design iteration emphasizing the importance of context as a design focus can prime students who struggle to see science as relevant to change their attitudes. Implications are discussed around relationality, novel technological affordances, and the use of local contexts as learning resources.  相似文献   
14.
The ability to read relies upon not just decoding, but also comprehending text. Being a good comprehender requires strategic reading and implies the use of comprehension strategies. Research indicates that readers who are taught several reading comprehension strategies have better reading skills than those only taught a single strategy. One multiple strategy reading comprehension intervention was evaluated using a mixed-model quasi-experimental design. Intervention and control conditions groups were assessed at pre- and post-test points with standardised reading comprehension abilities, measured as the primary outcome measure. Implementation science principles were observed and evaluated. The schools all served areas of low socio-economic status. 74 pupils (aged 9–10) in five classes in four primary-level mainstream schools in a Scottish local authority were recruited as participants. Training was provided to participating schools by the first author and the programme was delivered in four sessions of 45 minutes per week for 8 weeks. An ANCOVA revealed a statistically significant effect of condition. Statistically significant scores were also evident in the secondary outcome measures of decoding of target word skills, children’s self-reports of their reading strategy use and recreational reading frequency. Implementation tools indicated that the intervention was acceptable and feasible to implement. Implications of introducing this multiple strategy reading comprehension programme and of the evaluation of implementation are discussed.  相似文献   
15.
Student exchange programs and trips abroad are consistently portrayed in scholarship as a strategy for promoting students’ global competence. Through a thematic document analysis of a mandatory course developed by the Israeli MOE for students embarking on trips abroad and additional sources, I explore the discourse used to portray these trips in the Israeli context, showing an alternative model that places the state rather than students at the center of these programs. Although from an education perspective this discourse is distinct, political science scholarship suggests the goals it embodies could be embedded across many national contexts, albeit more discretely.  相似文献   
16.
Problem-based learning (PBL) emerged during the 1970s in response to demands for active learning methods capable of developing transferable knowledge and skills in the training of doctors. Over succeeding decades, PBL was gradually adopted in other fields of education. This systematic review aimed to identify key streams of theory and empirical research that have emerged over time in PBL research and practice. The review sourced 12,036 Scopus-indexed documents published between 1974 and 2019. Science mapping was used to reveal the ‘intellectual structure’ or key research themes that have evolved in this literature over the past 45 years. The science mapping tool used in this review was author co-citation analysis conducted in VOSviewer software. Author co-citation analysis identified three schools of thought that together describe the intellectual structure of the PBL knowledge base: Design of PBL Curriculum and Instruction; PBL Effectiveness; Theory and Practice in Active Learning. In addition to portraying the intellectual structure of the literature as a whole, the review also conducted longitudinal analyses aimed at highlighting structural changes in this field over time. These analyses found that although the size and impact of schools of thought associated with Design of PBL Curriculum and Instruction and PBL Effectiveness increased over time, they remained stable in terms of theoretical foci. However, the Active Learning school evolved from a small school of authors associated with Cognitive Learning Theories prior to 2000 into the largest school of thought during the most recent decades. These findings both reaffirm the theoretical underpinnings of the PBL knowledge base and highlight its increasing integration with other forms of active learning.  相似文献   
17.
运用文献资料法、数理统计法和逻辑分析法,对《运动选材学》通用教材不同版本的整体结构内容、章节进行纵横竞技体育历史分析,从跨项选材视角下研究《运动选材学》教材体系的发展规律、历史地位、内容体系存在的问题和建立《运动选材学》内容体系的对策,以期为《运动选材学》教材内容体系的建设与发展提供一些有益的理论依据。同时,也为我国备战2020年东京夏季奥运会和2022年北京冬季奥运会提供一定的理论指导。  相似文献   
18.
受惠于大数据技术的迅猛发展,体育智库的高端化建设不仅迎来新的契机,也在客观上形成了智库研究的学术新机遇,带来了智库研究范式的革命性转型。通过对大数据和高端体育智库内涵的解读,透析大数据对高端体育智库治理决策科学化的推动、多元主体合作的加强和理性辨析能力的提升,提出以大数据思维引领高端体育智库发展方向、以大数据平台保障高端体育智库稳定运行,以大数据技术提升高端体育智库治理效能,以大数据人才推动高端体育智库可持续发展的建设策略。  相似文献   
19.
20.
[目的/意义] 杰青基金实施25年来,资助者年龄呈大龄化趋势发展,深入分析该现象对完成杰青基金的影响,对未来杰青基金管理具有重要意义。[方法/过程] 研究以1994-2018年杰青基金地球科学项目为研究对象,构建科研论文产出效率、创新能力和学术影响力三个评价指标,提出"科技人力资本投入-科研产出"理论模型及假设,采用DID模型克服样本选择性偏误所导致的内生性问题,验证理论假设,实现对杰青基金资助年龄异质性的研究。[结果/结论] 实证结果表明:杰青科学家大龄化趋势日趋严重,存在明显的45岁现象;杰青基金实施20年中,支持"资助年龄越大,资助效应越好"假设的比例较低;三个评价指标维度,资助效应最大且资助年龄在39-42岁之间的年份在杰青基金实施20年中所占比例最大。因此,无论从杰青基金设立宗旨、还是从评估结果来看,都应该避免杰青科学家大龄化趋势,扩大对中低龄优秀青年人才的资助。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号