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   2807篇
  免费   55篇
  国内免费   3篇
教育   1956篇
科学研究   169篇
各国文化   40篇
体育   364篇
综合类   1篇
文化理论   45篇
信息传播   290篇
  2023年   9篇
  2022年   16篇
  2021年   27篇
  2020年   56篇
  2019年   101篇
  2018年   121篇
  2017年   135篇
  2016年   122篇
  2015年   71篇
  2014年   96篇
  2013年   597篇
  2012年   86篇
  2011年   83篇
  2010年   70篇
  2009年   74篇
  2008年   88篇
  2007年   97篇
  2006年   73篇
  2005年   74篇
  2004年   69篇
  2003年   77篇
  2002年   57篇
  2001年   49篇
  2000年   43篇
  1999年   40篇
  1998年   34篇
  1997年   31篇
  1996年   31篇
  1995年   33篇
  1994年   29篇
  1993年   40篇
  1992年   25篇
  1991年   30篇
  1990年   18篇
  1989年   22篇
  1988年   24篇
  1987年   21篇
  1986年   17篇
  1985年   16篇
  1984年   24篇
  1983年   15篇
  1982年   15篇
  1981年   19篇
  1980年   7篇
  1979年   6篇
  1978年   9篇
  1977年   10篇
  1976年   10篇
  1975年   6篇
  1967年   5篇
排序方式: 共有2865条查询结果,搜索用时 31 毫秒
51.
The predictive value of rime spellings in English was compared directly to other types of regularities beyond the level of the single letter. A computer-assisted analysis of a list of twenty-four thousand written words, each paired with its corresponding pronunciation, reveals that only a small number of rime spellings are highly regular in their pronunciations. The conventional division of vowel letter pronunciations into short and long in closed and open written syllables is the most reliable key to English pronunciation. Our findings support the notion that English spelling is based at least in part on syllable structure. In addition, prefixes and suffixes provide very reliable clues to pronunciation, which suggests that their regularity should be exploited in the teaching of reading.  相似文献   
52.
Between 1860 and 1902, the arithmetic curriculum in government elementary schools in Victoria, Australia changed little. It was based on British models and valued highly computational skills, speed and accuracy. Teaching practice was dominated by the payment by results examination, and was mechanical, rules-based and often ineffective. By the end of the nineteenth century, dissatisfaction with both the principles and practice of this instrumental form of education was widespread; and the ideas of the New Education were incorporated into the courses of 1902 and 1911. However, teaching practice lagged behind the new aims, and continued to be largely mechanical, rules-based and abstract. The inspectors continued to demand the computational skills of the old courses, and the education and training of teachers did not keep pace with the new demands.  相似文献   
53.
We elaborate a supply chain innovation matrix that can be applied to both commercial and military supply chains. By shifting the analysis from a focal firm to industry structure, we argue that the market structure of the entire supply chain functions as a major moderating variable in determining both the timing and adoption of innovations, both for commercial and military markets. We extend work on supply chain resource dependency by drawing a distinction between market-structure-induced resource dependency and supplier over-reliance on a customer in a competitive market. This has policy implications for the organization of military industrial research and development (IR&D). Joint service research and development (Jointness) will certainly bring about innovation, but it will be incremental, reinforcing established military hierarchies. Policy makers may need to add this probable consequence when comparing Jointness and inter-service rivalry. The cost savings inherent in Jointness may unwittingly sustain a military force unready for fighting the next war.  相似文献   
54.
This article describes a framework to help publishers decide whether they should develop and host their own proprietary online journal system, or whether they should outsource this activity. We also suggest a practical high‐level checklist for comparing journal systems.  相似文献   
55.
Middle grades science teachers need professional support in practice as they implement new inquiry-based science. Professional development schools can provide this bottom-up support through connecting preservice and inservice teacher education programs in classroom practice. In this study, coteaching arrangements with secondary science education majors provided additional teachers in the classroom to support a materials-rich curriculum and the needed associated pedagogies. Science education majors provided needed assistance in troubleshooting difficulties with the new curriculum. They also provided needed content knowledge to support inquiry, along with creating moments and space for teachers to reflect on inquiry practice. Ongoing assistance by preservice teachers allowed inservice teachers to progress from logistical concerns in implementing kit curriculum to concerns regarding student learning and the supporting professional development.
Charles J. EickEmail:
  相似文献   
56.
The current study examines the effects of digital scaffolding on the English literacy of fourth- and sixth-grade students. A total of 1085 native English-speaking and language minority students from 25 treatment classes and 20 control classes across three school districts participated in this study for one school year. Treatment students read their English language arts and social studies text in visual-syntactic text format (VSTF) on their laptops and control students read the regular block format of the textbook either on their laptops or in print. Observations and interviews revealed that VSTF reading facilitated instruction processes and student learning in reading activities. The results of California Standard Tests (CST) before and after the treatment revealed that sixth-graders who received syntactic scaffolding outperformed control students on the composite CST score. In particular, reading in VSTF benefited the treatment students in three CST sub-categories: word analysis, written conventions and writing strategies. This study suggests that future research should investigate instructional strategies that support reading and writing development of adolescents, including at-risk students, using syntactic scaffolding.  相似文献   
57.
This study examines crossover effects of adolescent substance misuse preventive interventions on academic success in college. It evaluates pathways of influence on college grades, via effects on school engagement, problem-solving skills, and substance misuse in high school. Data were collected as part of an Randomized Controlled Trial (RCT) evaluating a multicomponent intervention conducted in 28 school districts with middle school students. At age 19, study participants (N = 1,488) enrolled in college reported on college grades. The model fit the data, supporting hypothesized pathways of intervention impacts. Inclusion of a significant direct effect on college grades further improved model fit. Results support the potential for universal substance misuse preventive interventions delivered by community partnerships during middle school to yield effects on long-term academic success.  相似文献   
58.
59.
60.
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