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   10734篇
  免费   48篇
  国内免费   6篇
教育   7210篇
科学研究   1377篇
各国文化   140篇
体育   715篇
综合类   6篇
文化理论   94篇
信息传播   1246篇
  2020年   127篇
  2019年   179篇
  2018年   185篇
  2017年   232篇
  2016年   197篇
  2015年   126篇
  2014年   212篇
  2013年   2093篇
  2012年   177篇
  2011年   175篇
  2010年   150篇
  2009年   162篇
  2008年   197篇
  2007年   184篇
  2006年   178篇
  2005年   151篇
  2004年   143篇
  2003年   129篇
  2002年   117篇
  2001年   130篇
  2000年   152篇
  1999年   132篇
  1998年   91篇
  1996年   97篇
  1995年   83篇
  1994年   102篇
  1993年   113篇
  1992年   144篇
  1991年   155篇
  1990年   151篇
  1989年   154篇
  1988年   129篇
  1987年   141篇
  1986年   151篇
  1985年   163篇
  1984年   156篇
  1983年   155篇
  1982年   121篇
  1981年   131篇
  1980年   109篇
  1979年   153篇
  1978年   153篇
  1977年   109篇
  1976年   109篇
  1975年   102篇
  1974年   88篇
  1973年   103篇
  1972年   87篇
  1971年   82篇
  1970年   83篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
32.
33.
34.
35.
Since Federal regulations have given states the option to implement alternate assessments based on modified academic achievement standards (AA-MAS) as part of their accountability systems for a small group of students with disabilities, a number of states have made decisions about whether or not to develop and implement such an assessment. State-level directors of assessment and directors of special education were surveyed about their state's decisions on implementing AA-MAS. Improvements in accessibility and appropriateness were reasons given for choosing to implement an AA-MAS, whereas lack of resources and guidance were identified as barriers. This article presents the findings from a survey on 22 states' decisions concerning implementation of AA-MAS.  相似文献   
36.
Dissertation committees are complex social arenas that underscore expertise, image, and peer relationships—all of which affect professional identity and advancement. This study presents a sampling of how early career women faculty members learn about and negotiate their participation on dissertation committees. Research questions focused on participants’ concerns about the social and political aspects of participation viz à viz peer relationships and faculty rewards. We analyzed interview data using both holistic and constant comparative methods, resulting in a working model of active participation across three domains: knowledge, access, and membership. We also identified developmental trends of dissertation committee engagement across the early career.  相似文献   
37.
38.
This paper presents a conceptual analysis for students’ images of graphs and their extension to graphs of two-variable functions. We use the conceptual analysis, based on quantitative and covariational reasoning, to construct a hypothetical learning trajectory (HLT) for how students might generalize their understanding of graphs of one-variable functions to graphs of two-variable functions. To evaluate the viability of this learning trajectory, we use data from two teaching experiments based on tasks intended to support development of the schemes in the HLT. We focus on the schemes that two students developed in these teaching experiments and discuss their relationship to the original HLT. We close by considering the role of covariational reasoning in generalization, consider other ways in which students might come to conceptualize graphs of two-variable functions, and discuss implications for instruction.  相似文献   
39.
40.
    
The Native American population is severely underrepresented in empirical test validity research despite being overrepresented in special education programs and at increased risk for psychoeducational evaluation. The structural validity of the Wechsler Intelligence Scale for Children – Fourth Edition (WISC‐IV) was investigated with a sample of 176, six‐to‐sixteen‐year‐old Native American children referred for a psychoeducational evaluation. Confirmatory factor analysis procedures replicated the normative first‐order factor structure and a higher‐order general ability factor that accounted for the greatest amount of common (69%) and total (33%) variance. These results support the structural validity of the WISC‐IV with a referred Native American sample and suggest that interpretation of the WISC‐IV scores should not neglect the strong general ability factor.  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