全文获取类型
收费全文 | 22016篇 |
免费 | 271篇 |
国内免费 | 14篇 |
专业分类
教育 | 15773篇 |
科学研究 | 2193篇 |
各国文化 | 130篇 |
体育 | 1667篇 |
综合类 | 10篇 |
文化理论 | 135篇 |
信息传播 | 2393篇 |
出版年
2021年 | 199篇 |
2020年 | 283篇 |
2019年 | 425篇 |
2018年 | 634篇 |
2017年 | 620篇 |
2016年 | 580篇 |
2015年 | 358篇 |
2014年 | 529篇 |
2013年 | 3945篇 |
2012年 | 490篇 |
2011年 | 578篇 |
2010年 | 420篇 |
2009年 | 398篇 |
2008年 | 536篇 |
2007年 | 413篇 |
2006年 | 469篇 |
2005年 | 339篇 |
2004年 | 349篇 |
2003年 | 298篇 |
2002年 | 346篇 |
2001年 | 488篇 |
2000年 | 462篇 |
1999年 | 426篇 |
1998年 | 219篇 |
1997年 | 283篇 |
1996年 | 282篇 |
1995年 | 249篇 |
1994年 | 228篇 |
1993年 | 227篇 |
1992年 | 369篇 |
1991年 | 320篇 |
1990年 | 307篇 |
1989年 | 372篇 |
1988年 | 356篇 |
1987年 | 292篇 |
1986年 | 305篇 |
1985年 | 313篇 |
1984年 | 262篇 |
1983年 | 318篇 |
1982年 | 223篇 |
1981年 | 224篇 |
1980年 | 214篇 |
1979年 | 323篇 |
1978年 | 240篇 |
1977年 | 222篇 |
1976年 | 198篇 |
1975年 | 176篇 |
1974年 | 173篇 |
1973年 | 174篇 |
1971年 | 147篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
141.
Educational Psychology Review - In his 1973 article The Structure of ill structured problems, Herbert Simon proposed that solving ill-structured problems could be modeled within the same... 相似文献
142.
Christina Hamme Peterson Sean B. Hall Juleen K. Buser 《Counselor Education & Supervision》2016,55(2):80-94
Counselors (N = 911) reported the research skills needed for practice and subsequent research training needs. Findings indicate that counselors have a high need for research skills at work, but training needs differ significantly by counselor type. Recommendations include increasing emphasis on single‐case design, survey design, and widely available data analysis tools. 相似文献
143.
144.
145.
Steve Graham Evan J. Fishman Robert Reid Michael Hebert 《Learning disabilities research & practice》2016,31(2):75-89
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
146.
147.
Jennifer Ward Stephanie Branson Megan D. Cross Ilene R. Berson 《Journal of Research on Technology in Education》2016,48(3):227-238
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
148.
149.
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
150.
Ivan J. K. Dahl 《The Teacher Educator》2013,48(2):23-26
Maintaining that academic freedom is necessary if schools are to function effectively, Dr. Dahl presents lucid arguments to support his position. 相似文献