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   2091篇
  免费   32篇
  国内免费   3篇
教育   1481篇
科学研究   182篇
各国文化   36篇
体育   157篇
综合类   4篇
文化理论   35篇
信息传播   231篇
  2022年   8篇
  2021年   18篇
  2020年   31篇
  2019年   52篇
  2018年   75篇
  2017年   85篇
  2016年   81篇
  2015年   51篇
  2014年   55篇
  2013年   444篇
  2012年   53篇
  2011年   53篇
  2010年   39篇
  2009年   47篇
  2008年   64篇
  2007年   65篇
  2006年   45篇
  2005年   53篇
  2004年   51篇
  2003年   46篇
  2002年   39篇
  2001年   39篇
  2000年   33篇
  1999年   29篇
  1998年   20篇
  1997年   17篇
  1996年   33篇
  1995年   29篇
  1994年   18篇
  1993年   25篇
  1992年   38篇
  1991年   26篇
  1990年   31篇
  1989年   22篇
  1988年   18篇
  1987年   18篇
  1986年   13篇
  1985年   18篇
  1984年   13篇
  1983年   21篇
  1982年   17篇
  1981年   8篇
  1980年   10篇
  1979年   13篇
  1978年   10篇
  1977年   18篇
  1976年   13篇
  1975年   10篇
  1974年   9篇
  1971年   8篇
排序方式: 共有2126条查询结果,搜索用时 15 毫秒
31.
32.
The rapid development of ICT (information technology and communication) in the last two decades has changed society substantially as a whole. For higher education institutions, the external environment pressure to incorporate ICT in their educational and administrative processes has forced them to invest in resources for infrastructure and training. In addition, teachers have found that they can use technology in their teaching, but lack of full knowledge of how to use it effectively from a pedagogical point of view. The incorporation of new education modalities depends largely on the contextual variables prevailing in the institution and teachers. In UABC (Autonomous University of Baja California), the early days of online education go hack to 1996, so the study period was from 1996 to 2009. An online survey was designed to fmd out the teachers' backgrounds and involvement in online education, their experience as online teachers, and the tools and practices used. Of 97 teachers who were identified with some experience in online teaching, 70% responded to the Survey (68). It was found that the highest percentage (33%) of teachers who responded the survey started teaching online between 2003 and 2006. 56% of teachers have been teaching between one and five online courses. On the other hand, most teachers recognized that 30%-79% of the content of their courses were online based. The most popular learning management system used is moodle followed by blackboard in teachers' preference. In general, teachers expressed using the three main communication tools of online education: forums, chat and e-mail, favoring the use of e-mail. The communication slrategies teachers often use in their courses promoted student-student and student-teacher interaction. In their evaluation strategies, most said that they used self-assessment, rubrics and to a lesser extent online exams and co-evaluation. The results show that most teachers who have been involved in online education in UABC campus have expressed havi  相似文献   
33.
34.
This paper discusses three separate educational projects which involved students working side-by-side with homicide investigators in an effort to conduct cold case investigations. Each project resulted in two different products, one for agency use and the other for public consumption. The cold case investigative reports produced for each case became part of the investigative file and are confidential documents. The video PSAs were for public consumption and were designed to provide additional exposure to the cases with the hope of generating productive tips. Each project was carried in collaboration with local Crime Stoppers programs, law enforcement agencies, and coroner’s offices.  相似文献   
35.
Rats were trained to leverpress for food and subsequently exposed to either arithmetic series or random variable-interval reinforcement schedules. Adjunctive drinking developed in all subjects exposed to arithmetic variable-interval reinforcement, but did not develop in six of the eight animals trained on the random schedule. The results suggest that adjunctive drinking is the result of an interaction between the tendency of rats to drink after eating and the ability of locally low probabilities of reinforcement within schedules to induce conditioned behavioral states.  相似文献   
36.
Education in different communication media takes place with functional differences that have consequences for the course of instructional interaction. In this paper, we examine instructional interaction among people using a computer-based electronic message system, contrasting it with conventional face-to-face discussion in a college level class. Interaction via the non-real time message system contained multiple “threads of discourse,” a higher proportion of student turns to teacher turns, and other deviations from the “initiation-response-evaluation” sequences usually found in face-to-face classroom interactions. Based on the results of our contrast, we describe ways to organize instruction using electronic message systems to take advantage of new properties and to avoid shortcomings of these new instructional media.  相似文献   
37.
Accountability-oriented reforms demand immediate and continual gains on achievement test, for all students, and without diminishing other outcomes or undermining instruction. This paper describes a framework for aligning classroom assessment and external testing with the aim of negotiating these seemingly contradictory goals. The framework varies the sensitivity to instruction and the representations of knowledge across approaches to assessment. Cycles of design- based studies successively refine relationships between a curriculum and the frame that each assessment provides. Doing so, we argue, leverages the unique formative and summative balance across assessments in order to scaffold learning and demonstrate the “consequential” validity of our strategy without compromising curricula, instruction, or the “evidential” validity that warrants their continued use.  相似文献   
38.
Serving low-income children from birth to age five and their families, Head Start is a primary venue for identification and intervention in the area of child mental health. However, recent research has demonstrated that the knowledge base regarding prevalence, developmental course, and predictive power of child mental health problems is lacking for young children in general and low-income, diverse populations in particular. Head Start's agency-level data is often discrepant from both national estimates and small, intensive studies of similar populations, perhaps for reasons related to availability of community services and professional staff, as well as concerns about stigmatization. Following on recent expert recommendations, new collaborative Federal initiatives are underway to increase our understanding of the types, trajectories, and treatments of mental health problems affecting the vulnerable children served by Head Start. The paper concludes with a call to action for the field in the area of young children's mental health.  相似文献   
39.
The sociocultural context in which children acquire and use everyday mathematics was studied in Brazilian shantytown communities. Children's developing mathematical abilities and use of currency in solving commercial problems were investigated. Interviews with the parents of 105 children from 4 to 14 years of age indicated that, when sent to make purchases at local stands, the problems entailed in the responsibilities parents assigned to children involved greater arithmetical complexity with increasing age. Children's accuracy and strategy use on arithmetic tasks similar to the problems encountered in commercial transactions revealed: ( a ) many children used currency to aid their problem solving; ( b ) with increasing age, currency use declined; and ( c ) children's currency use progressed from global estimates to the mental decomposition and manipulation of currency values. The mathematical complexity of children's commercial transactions correlated significantly with their mathematics performance even when age, grade in school, and years of schooling were statistically controlled The results provide evidence that by adjusting the mathematical complexity of children's commercial transactions, parents facilitate connections between children's developing competence and their everyday activities.  相似文献   
40.
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