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   34949篇
  免费   549篇
  国内免费   40篇
教育   24613篇
科学研究   3126篇
各国文化   347篇
体育   3014篇
综合类   55篇
文化理论   280篇
信息传播   4103篇
  2021年   307篇
  2020年   533篇
  2019年   749篇
  2018年   980篇
  2017年   1122篇
  2016年   1020篇
  2015年   621篇
  2014年   846篇
  2013年   6520篇
  2012年   806篇
  2011年   899篇
  2010年   692篇
  2009年   698篇
  2008年   742篇
  2007年   720篇
  2006年   659篇
  2005年   576篇
  2004年   798篇
  2003年   659篇
  2002年   729篇
  2001年   626篇
  2000年   613篇
  1999年   571篇
  1998年   295篇
  1997年   332篇
  1996年   384篇
  1995年   334篇
  1994年   324篇
  1993年   302篇
  1992年   449篇
  1991年   445篇
  1990年   469篇
  1989年   489篇
  1988年   451篇
  1987年   424篇
  1986年   407篇
  1985年   513篇
  1984年   419篇
  1983年   405篇
  1982年   326篇
  1981年   318篇
  1980年   273篇
  1979年   392篇
  1978年   329篇
  1977年   300篇
  1976年   276篇
  1975年   219篇
  1974年   227篇
  1973年   229篇
  1971年   199篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
991.
992.
993.
994.
Several authors have suggested reasons for children transferring to new schools, and they have hypothesized that the reasons may affect the nature and tenure of the transition process. The present study investigated the reasons parents of 451 elementary school children gave for changing schools and demonstrated that the reasons influenced children's ability to adjust to their new schools. Specifically, children transferring because their old school closed were more competent academically and had a higher average socioeconomic status than did the other groups. On the other hand, those transferring because of changing households had poorer academic performance and more stressful life events on average than the other groups. Finally, reasons for moving not only vary according to race, but the effects of the reasons are different for each racial group. Implications for school personnel seeking to integrate transfer students into their schools effectively are discussed.  相似文献   
995.
The federal requirement to develop an Individual Family Service Plan (IFSP) for all infants and toddlers with special needs has a major conceptual difficulty that has, to date, been inadequately addressed in the literature. That problem stems from the linkage of family service to family assessment. Many authorities, attracted to parental “empowerment” theory, advocate that parents should be the authors rather than (or as well as) the objects of assessment, and that professionals and parents should be partners in assessing needs and planning services. When there is disagreement, professionals should defer to parents, who are in the best position to assess their own needs. We question the wisdom of conducting assessments with, or on, families of targeted children. But, if there are to be assessments, we argue that families are better served, and mutual respect better preserved, by a traditional complementary relationship: The professional controls the evaluation process, determines the problems (with the input of the family), and makes recommendations, which parents are then free to reject.  相似文献   
996.
The Parenting Inventory: Young Children (PI) is a rating scale that measures the developmental expectations and behaviors of parents of children who are between the ages of 1 and 4 years, 11 months. Using a representative urban sample of 1,056 mothers, the PI was found to discriminate successfully between parents with children of different ages and to have substantial item-construct correlations (content validity). The PI was not strongly related to the Adult-Adolescent Parenting Inventory, a measure of parenting attitudes (discriminant validity). Reasons for this latter finding are discussed. Potential uses of the PI for practitioners working with parents in the schools are described.  相似文献   
997.
998.
Cognitive theory suggests that a key to expert performance lies in the internal organization of the expert's knowledge. The authors contend that the type of technical illustration used during instruction influences knowledge organization and greatly impacts students' understanding of the content. This paper describes an experimental study that tested the impact of one type of conceptual illustration on students' understanding of the structure, function, and behavior of complex technical systems. The results show that supplementing traditional technical instruction with functional flow diagrams can improve overall system understanding. The functional flow diagrams were also found to be an effective instructional aid for enhancing students' conceptual understanding of the causal behavior of systems. In addition, the use of the functional flow diagram was found to significantly improve the subjects' ability to construct conceptual models that were similar to those of an expert. The implications of using conceptual diagrams for technical instruction are discussed and recommendations for future research in this area are provided.  相似文献   
999.
1000.
The overlap of words specifically taught in reading textbooks with the contents of standardized reading achievement tests may be a source of bias that is frequently overlooked in psychoeducational assessments. This study compares the standardized achievement test performance of 62 second graders receiving instruction in two different reading curricula (Open Court and Houghton-Mifflin) to determine whether either curriculum generates different quantitative estimates of reading achievement. Reading subtest scores derived from the Kaufman Test of Educational Achievement-Brief Form (K-TEA), the Wide Range Achievement Test-Revised (WRAT-R), and the Reading Recognition and Reading Comprehension subtests from the Peabody Individual Achievement Test (PIAT) were examined. Grade level equivalents and scaled scores from the California Achievement Test (CAT) were also examined. Three Curriculum × Test repeated measures ANOVAs were conducted using grade level scores (2×7), standard scores (2×4), and CAT scaled scores (2 × 5) as dependent measures. A significant Curriculum × Test interaction was identified, suggesting differences among tests in estimates of reading ability as a function of the reading program.  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