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   18173篇
  免费   261篇
  国内免费   121篇
教育   12647篇
科学研究   2192篇
各国文化   131篇
体育   1721篇
综合类   11篇
文化理论   181篇
信息传播   1672篇
  2022年   136篇
  2021年   171篇
  2020年   319篇
  2019年   476篇
  2018年   631篇
  2017年   586篇
  2016年   544篇
  2015年   342篇
  2014年   415篇
  2013年   3217篇
  2012年   411篇
  2011年   410篇
  2010年   314篇
  2009年   310篇
  2008年   314篇
  2007年   335篇
  2006年   333篇
  2005年   310篇
  2004年   285篇
  2003年   287篇
  2002年   263篇
  2001年   278篇
  2000年   291篇
  1999年   293篇
  1998年   165篇
  1997年   164篇
  1996年   207篇
  1995年   188篇
  1994年   151篇
  1993年   156篇
  1992年   225篇
  1991年   234篇
  1990年   244篇
  1989年   277篇
  1988年   226篇
  1987年   238篇
  1986年   225篇
  1985年   255篇
  1984年   229篇
  1983年   217篇
  1982年   183篇
  1981年   174篇
  1980年   161篇
  1979年   250篇
  1978年   195篇
  1977年   185篇
  1976年   154篇
  1975年   140篇
  1974年   156篇
  1973年   135篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
982.
The popular narrative of Wisconsin’s collective bargaining battle started out being about money. Should public employees pay more toward their healthcare? Can school districts offset state aid cuts using the additional revenue from employee healthcare contributions? Does collective bargaining have a cost? This article gives an overview of Wisconsin school boards, explains exactly how Act 10 increased their power, demonstrates why and how improved school board governance can have an impact on student achievement, reviews the changes Wisconsin school boards are making because of Act 10, and provides policy recommendations to improve both board governance behaviors, and the quality of policies enacted by school boards in the postcollective bargaining era.  相似文献   
983.
984.
985.
Educational Studies in Mathematics - An essential task for mathematics teachers is posing problems. Selecting mathematics problems that develop mathematical proficiency and engage students in...  相似文献   
986.
Infant vocalizations are early-emerging communicative markers shown to be atypical in autism spectrum disorder (ASD), but few longitudinal, prospective studies exist. In this study, 23,850 infant vocalizations from infants at low (LR)- and high (HR)-risk for ASD (HR-ASD = 23, female = 3; HR-Neg = 35, female = 13; LR = 32, female = 10; 80% White; collected from 2007 to 2017 near Philadelphia) were analyzed at 6, 12, and 24 months. At 12 months, HR-ASD infants produced fewer vocalizations than HR-Neg infants. From 6 to 24 months, HR-Neg infants demonstrated steeper vocalization growth compared to HR-ASD and LR infants. Finally, among HR infants, vocalizing at 12 months was associated with language, social phenotype, and diagnosis at age 2. Infant vocalizing is an objective behavioral marker that could facilitate earlier detection of ASD.  相似文献   
987.
988.
989.
Higher Education - Undergraduate internships have gained popularity among students, universities, governments and firms since the creation of the European Higher Education Area. However, empirical...  相似文献   
990.
The implementation of science reform must be viewed as a systems-level problem and not just focus on resources for teachers and students. High-capacity instructional leadership is essential for supporting classroom science instruction. Recent reform efforts include a shift from learning about science facts to figuring out scientific phenomena in which students use science practices as they build and apply disciplinary core ideas. We report findings from a research study on professional development (PD) to support instructional leaders' learning about the science practices. After participating in the PD, the instructional leaders' familiarity with and leadership content knowledge of the science practices significantly improved. Initially, principals used their understandings from other disciplines and content neutral visions of classrooms to make sense of science instruction. For example, they initially used their understandings of models and argument from ELA and math to make sense of science classroom instruction. Furthermore, some principals focused on content neutral strategies, like a clear objective. Over the course of the PD workshops, principals took up the language of the science practices in more nuanced and sophisticated ways. Principals' use of the language of the science practices became more frequent and shifted from identifying or defining them to considering quality and implementation in science classrooms. As we design tools to support science, we need to consider instructional leaders as important stakeholders and develop resources to specifically meet their needs. If the science feels too unfamiliar or intimidating, principals may avoid or reframe science reform efforts. Consequently, it is important to leverage instructional leaders' resources from other disciplines and content neutral strategies as bridges for building understanding in science. We argue that the science practices are one potential lever to engage in this work and shift instructional leaders' understandings of science instruction.  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