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   118242篇
  免费   1847篇
  国内免费   242篇
教育   81743篇
科学研究   13320篇
各国文化   1978篇
体育   9318篇
综合类   173篇
文化理论   1056篇
信息传播   12743篇
  2021年   924篇
  2020年   1643篇
  2019年   2550篇
  2018年   3024篇
  2017年   3294篇
  2016年   3366篇
  2015年   2305篇
  2014年   3174篇
  2013年   27294篇
  2012年   2327篇
  2011年   2652篇
  2010年   2296篇
  2009年   2614篇
  2008年   2336篇
  2007年   2061篇
  2006年   2313篇
  2005年   2298篇
  2004年   2994篇
  2003年   2302篇
  2002年   2136篇
  2001年   1970篇
  2000年   1623篇
  1999年   1514篇
  1998年   1455篇
  1997年   1521篇
  1996年   1695篇
  1995年   1465篇
  1994年   1465篇
  1993年   1469篇
  1992年   1477篇
  1991年   1400篇
  1990年   1379篇
  1989年   1238篇
  1988年   1020篇
  1987年   950篇
  1986年   999篇
  1985年   1222篇
  1984年   1126篇
  1983年   1065篇
  1982年   1078篇
  1981年   1004篇
  1980年   959篇
  1979年   1055篇
  1978年   1034篇
  1977年   954篇
  1976年   855篇
  1975年   698篇
  1974年   698篇
  1973年   657篇
  1972年   505篇
排序方式: 共有10000条查询结果,搜索用时 203 毫秒
991.
992.
Analysis of variance (ANOVA) is a test of mean differences, but the reference to variances in the name is often overlooked. Classroom activities are presented to illustrate how ANOVA works with emphasis on how to think critically about inferential reasoning.  相似文献   
993.
994.
Students with Attention Deficit Hyperactivity Disorders (ADHD) frequently experience significant difficulty mastering basic academic skills. This meta‐analysis focuses on one specific potential area of learning difficulties for these students: namely, writing. To identify the extent and depth of the potential writing challenges faced by students with ADHD, we conducted a meta‐analysis comparing the writing performance of grade 1 to 12 students with ADHD to their normally achieving peers. We located 44 papers, yielding 45 studies with 87 effect sizes. The average weighted effect sizes showed that students with ADHD obtained lower scores than their normally achieving peers for writing quality (–0.78), output (–0.64), number of genre elements (–0.69), vocabulary (–0.76), spelling (–0.80), and handwriting (–0.62). Contrary to expectations, moderator analyses found that neither study quality nor the source from which ADHD students were drawn (i.e., school/community vs. clinic/hospital) accounted for variability above sampling error alone.  相似文献   
995.
996.
This study explored how developmentally appropriate practices influenced the affordances of a multitouch surface in an early childhood classroom. Children, ages 4 to 5 years old, were videotaped while engaged in a storymaking application on a multitouch table. As a result of the study, we found that some challenges with the functionality undermined children's autonomous control. The researchers observed numerous instances of issues with control of the medium, including height of the table, sensitivity to multiple types of touch, and limited instructions and prompts. Implications for future research and practice are discussed.  相似文献   
997.
The present article explores the utility and feasibility of treatment validation consultation (TVC). Although evidence exists for behavioral consultation, few findings have been reported for TVC. TVC is based on core components of behavioral consultation, but has several unique characteristics. In this article, TVC is situated within the behavioral consultation literature; one case study is used to demonstrate TVC’s utility and feasibility; and considerations for future TVC research are explored.  相似文献   
998.
Testing organization needs large numbers of high‐quality items due to the proliferation of alternative test administration methods and modern test designs. But the current demand for items far exceeds the supply. Test items, as they are currently written, evoke a process that is both time‐consuming and expensive because each item is written, edited, and reviewed by a subject‐matter expert. One promising approach that may address this challenge is with automatic item generation. Automatic item generation combines cognitive and psychometric modeling practices to guide the production of items that are generated with the aid of computer technology. The purpose of this study is to describe and illustrate a process that can be used to review and evaluate the quality of the generated item by focusing on the content and logic specified within the item generation procedure. We illustrate our process using an item development example from mathematics drawn from the Common Core State Standards and from surgical education drawn from the health sciences domain.  相似文献   
999.
1000.
With the recent adoption of the Common Core standards in many states, there is a need for quality information about textbook alignment to standards. While there are many existing content analysis procedures, these generally have little, if any, validity or reliability evidence. One exception is the Surveys of Enacted Curriculum (SEC), which has been widely used to analyze the alignment among standards, assessments, and teachers’ instruction. However, the SEC can be time‐consuming and expensive when used for this purpose. This study extends the SEC to the analysis of entire mathematics textbooks and investigates whether the results of SEC alignment analyses are affected if the content analysis procedure is simplified. The results indicate that analyzing only every fifth item produces nearly identical alignment results with no effect on the reliability of content analyses.  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