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   3513篇
  免费   51篇
  国内免费   2篇
教育   2927篇
科学研究   48篇
各国文化   26篇
体育   300篇
综合类   3篇
文化理论   8篇
信息传播   254篇
  2023年   13篇
  2022年   14篇
  2021年   20篇
  2020年   38篇
  2019年   77篇
  2018年   83篇
  2017年   101篇
  2016年   80篇
  2015年   58篇
  2014年   145篇
  2013年   852篇
  2012年   122篇
  2011年   128篇
  2010年   114篇
  2009年   132篇
  2008年   120篇
  2007年   92篇
  2006年   104篇
  2005年   57篇
  2004年   51篇
  2003年   44篇
  2002年   31篇
  2001年   29篇
  2000年   41篇
  1999年   40篇
  1998年   38篇
  1997年   34篇
  1996年   65篇
  1995年   111篇
  1994年   73篇
  1993年   66篇
  1992年   78篇
  1991年   62篇
  1990年   49篇
  1989年   25篇
  1988年   18篇
  1987年   12篇
  1986年   10篇
  1984年   16篇
  1982年   16篇
  1981年   14篇
  1980年   26篇
  1979年   55篇
  1978年   38篇
  1977年   46篇
  1976年   22篇
  1975年   22篇
  1974年   23篇
  1972年   8篇
  1962年   8篇
排序方式: 共有3566条查询结果,搜索用时 781 毫秒
41.
42.
This study employs narrative methods to give a holistic view of the experiences of five mature age preservice teachers in a semester unit of science education. The unit was designed to help teachers examine and make explicit their ideas about science and science teaching and consider ways in which they might put those ideas into practice. The pivotal theme, around which the teachers' experiences could be organised, was found to be learning science. The preservice teachers expressed a need for a supportive learning environment in which concepts were built gradually and introduced using concrete examples. Previous science experience was found to be a major influence on the attitudes the participants brought to the present course. A lack of previous experience or negative past experiences were a major cause of anxiety. Gender was also important as it had limited the science experiences available to some participants in the past and continued to influence the way they participated in classes during the semester. Specializations: primary science, science teacher education, primary school field experience. Specializations: formation of teachers' knowledge, leadership, teacher change, school reform.  相似文献   
43.
44.
It has been widely documented that accountability systems, including school inspections, bring with them unintended side effects. These unintended effects are often negative and have the potential to undo the intended positive effects. However the empirical evidence is limited. Through a European comparative study we have had the rare opportunity to collect empirical evidence and study the effects (both intended and unintended) of school inspections (a key system of accountability) in a systematic way, across seven countries. We present the findings of the unintended effects in this paper. Survey self-report responses from school principals in each country, with differing school inspection systems, are analysed to measure the prevalence of these unintended effects and to investigate the part played by pressure to do well in inspections. A key finding is that increasing pressure in school inspection systems is associated with the undesired effect of the narrowing and refocusing of the curriculum and instructional strategies. We also show that a proportion of school principals admit to misrepresenting the school in data sent to the inspectorate and show evidence for formalisation/proceduralisation (excessive focus on records) and ossification (fear of experimentation in teaching), although these factors are less related to changes in pressure.  相似文献   
45.
Substantial evidence documents the superiority of breastfeeding for mothers and breastmilk for babies. Although the American Academy of Pediatrics and the U.S. Healthy People 2010 initiative promote breastfeeding, current breastfeeding rates often fall short of recommendations. This study determined factors associated with exclusive breastfeeding 2 to 4 weeks following discharge from a large, urban, academic medical center striving for Baby-Friendly designation. Results indicated that mothers who breastfed within the first hour of birth (61%) were significantly more likely to be exclusively breastfeeding 2 to 4 weeks after discharge. Incorporating care practices that include a number of the "Ten Steps to Successful Breastfeeding," as recommended by the Baby-Friendly Hospital Initiative, may increase the duration of exclusive breastfeeding after discharge.  相似文献   
46.
This study examined the impact of computer simulation and supported science learning on a teacher’s understanding and conceptual knowledge of current electricity. Pre/Post tests were used to measure the teachers’ concept attainment. Overall, there was a significant and large knowledge difference effect from Pre to Post test. Two interesting interactions were observed during the data analysis. The first was the difference between Elementary and Secondary teachers. Both groups had significant gains, with large effect sizes, but the Elementary teachers (Pre-Mean = 3.70, Post-Mean = 7.51) started lower and ended higher exhibiting a significantly larger gain than the Secondary teachers (Pre-Mean = 4.96, Post-Mean = 6.71). The second interaction was the impact of gender. Both groups showed significant gains, with large effect sizes, but females (Pre-Mean = 3.90, Post-Mean = 7.21) gained significantly more than males (Pre-Mean = 5.13, Post-Mean = 7.01). These results confirm that computer simulation supported science learning can have a positive effect on concept attainment in teachers.  相似文献   
47.
48.
Being active in civic organizations can be expressed in multifarious forms of participation and commitment. With regard to individuals, the learning context it provides fosters personal development, sympathy for other perspectives, and social competencies in general and is, thus, particularly meaningful for young people in their second and third decades. With regard to organizations, civic participation strengthens the integration and dynamic adaptation of institutions to changing environments and, on a macro-level, raises social cohesion. The contexts of participation are various: not only in educational institutions and the world of work, but also in clubs, organizations and less formal groups, which are involved in social and political issues. Socio-structural and motivational factors, but also belonging to social networks determine the involvement in such forms of civic participation. Additionally, there is evidence of a mutual reinforcement of participation in different contexts. This is shown by the results of the DJI-Survey AID:A 2009.  相似文献   
49.
In Germany, teachers give a recommendation on the type of school a student should attend after primary school. In some federal states, access to a more demanding school type is restricted to students holding an appropriate recommendation. In a first step, we discuss different theories and approaches as to why a student??s social origin or migration background has an impact on the recommendation, irrespective of school performance. Then we test different hypotheses using data of a combined teacher, student, and parent survey, conducted from the 3rd grade on in Bavaria and Hessen. Overall, we have information on 1.644 students and 147 teachers. We find strong relationships between social origin and school recommendations as teachers take parents?? educational aspirations into account. Students?? positive school behavior has a positive impact on getting a recommendation for a higher school type; however, the influence of parents?? socio-economic status remains. The data show no evidence for children with migration backgrounds facing greater risks of receiving lower recommendations than other children??irrespective of their family language.  相似文献   
50.
The Bologna Process of higher education reform has led to a vast array of different programs of study in German teacher training. In this article, we firstly analyze the implementation of Bachelor programs in teacher training, comparing profession-oriented programs (i.e. those aiming to train students for the teaching profession from the beginning of studies) to polyvalent programs (i.e. those aiming at broad qualifications and including a late decision to become a teacher). Secondly, we investigate whether students enrolled in these study programs differ systematically in their subjective certainty about their career choice. To answer these questions, we analyze portfolios of documents related to teacher training programs from nine German universities that prepare students for teaching in the academic track. Additionally, we analyze data from N?=?2585 Bachelor and N?=?928 Master degree students. We found that most programs, even when they espouse polyvalence, require an early decision to become a teacher. Moreover, our data confirm findings from earlier studies indicating that student teachers are highly certain about their career choice from the very beginning, with students in polyvalent programs being slightly less certain than those in profession-oriented programs (d?=?0.32).  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