全文获取类型
收费全文 | 120675篇 |
免费 | 1848篇 |
国内免费 | 237篇 |
专业分类
教育 | 83899篇 |
科学研究 | 13422篇 |
各国文化 | 1991篇 |
体育 | 9208篇 |
综合类 | 170篇 |
文化理论 | 1058篇 |
信息传播 | 13012篇 |
出版年
2021年 | 924篇 |
2020年 | 1637篇 |
2019年 | 2548篇 |
2018年 | 3014篇 |
2017年 | 3281篇 |
2016年 | 3356篇 |
2015年 | 2293篇 |
2014年 | 3173篇 |
2013年 | 27374篇 |
2012年 | 2320篇 |
2011年 | 2643篇 |
2010年 | 2302篇 |
2009年 | 2609篇 |
2008年 | 2349篇 |
2007年 | 2055篇 |
2006年 | 2332篇 |
2005年 | 2292篇 |
2004年 | 2978篇 |
2003年 | 2299篇 |
2002年 | 2114篇 |
2001年 | 1959篇 |
2000年 | 1637篇 |
1999年 | 1525篇 |
1998年 | 1449篇 |
1997年 | 1511篇 |
1996年 | 1694篇 |
1995年 | 1466篇 |
1994年 | 1460篇 |
1993年 | 1473篇 |
1992年 | 1477篇 |
1991年 | 1386篇 |
1990年 | 1360篇 |
1989年 | 1296篇 |
1988年 | 1162篇 |
1987年 | 1077篇 |
1986年 | 1111篇 |
1985年 | 1387篇 |
1984年 | 1259篇 |
1983年 | 1258篇 |
1982年 | 1248篇 |
1981年 | 1162篇 |
1980年 | 1164篇 |
1979年 | 1220篇 |
1978年 | 1191篇 |
1977年 | 1106篇 |
1976年 | 991篇 |
1975年 | 798篇 |
1974年 | 788篇 |
1973年 | 758篇 |
1972年 | 543篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Eun Young Kang John William McKenna Sarah Arden Stephen Ciullo 《Learning disabilities research & practice》2016,31(1):22-33
In this systematic review of literature that spans 1975–2015, integrated reading and writing interventions for students with learning disabilities (LD) or students with academic difficulties were evaluated to understand the extant research, identify encouraging practices, and guide future research. Ten studies met inclusion criteria and each study was evaluated according to the relevant What Works Clearinghouse (WWC) design standards. Eight of the 10 investigations were conducted with students in grades 4–8. While only 4 of the 10 studies met WWC design with or without reservations, results from these studies are encouraging. Study findings suggest several areas for immediate future research relating to methodological and treatment variables and considerations for classroom instruction in order to respond to advanced expectations for the successful integration of reading and writing across subjects. In addition to employing stronger experimental designs and additional replications of encouraging studies, future research should explore the utility of integrated reading and writing interventions with secondary students with who have academic difficulties. 相似文献
992.
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
993.
994.
Methodological Choices in the Content Analysis of Textbooks for Measuring Alignment With Standards
下载免费PDF全文
![点击此处可从《Educational Measurement》网站下载免费的PDF全文](/ch/ext_images/free.gif)
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
995.
T. Padmanabhan 《Resonance》2011,16(10):950-955
Descartes discovered the link between algebra and geometry, which forms the cornerstone of applied geometry today. 相似文献
996.
997.
998.
999.
1000.
Katherine D. Veazey Morris Gilbert R. Parra Sarah R. S. Stender 《Journal of College Counseling》2011,14(1):21-33
The authors assessed the influences of several risk factors—self‐esteem, history of unwanted sexual contact (USC), depression, and sorority membership—on eating‐related and weight‐related attitudes and behaviors. Findings provide support for the roles of self‐esteem, depression, and USC on restricting attitudes. According to the authors' model, these independent variables predicted restricting attitudes that then predicted restricting behaviors. Implications for preventive interventions and the study's limitations are discussed. 相似文献