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   3455篇
  免费   56篇
  国内免费   2篇
教育   2530篇
科学研究   224篇
各国文化   32篇
体育   480篇
文化理论   73篇
信息传播   174篇
  2023年   34篇
  2022年   52篇
  2021年   79篇
  2020年   137篇
  2019年   215篇
  2018年   276篇
  2017年   277篇
  2016年   197篇
  2015年   129篇
  2014年   128篇
  2013年   742篇
  2012年   143篇
  2011年   100篇
  2010年   83篇
  2009年   89篇
  2008年   78篇
  2007年   63篇
  2006年   64篇
  2005年   49篇
  2004年   36篇
  2003年   52篇
  2002年   31篇
  2001年   33篇
  2000年   25篇
  1999年   27篇
  1998年   27篇
  1997年   20篇
  1996年   26篇
  1995年   26篇
  1994年   22篇
  1993年   18篇
  1992年   12篇
  1991年   15篇
  1990年   16篇
  1989年   21篇
  1988年   21篇
  1987年   13篇
  1986年   6篇
  1985年   7篇
  1984年   10篇
  1983年   6篇
  1982年   9篇
  1981年   9篇
  1980年   5篇
  1979年   7篇
  1978年   8篇
  1977年   5篇
  1976年   9篇
  1975年   8篇
  1974年   6篇
排序方式: 共有3513条查询结果,搜索用时 15 毫秒
991.
In this paper the authors argue that the use of the Open Method of Coordination (OMC) in the implementation of the Bologna process presents coordination problems that do not allow for the full coherence of the results. As the process is quite complex, involving three different levels (European, national and local) and as the final actors in the implementation process higher education institutions (HEIs) have considerable degree of autonomy, assuming that the implementation of Bologna is a top–down linear policy implementation process does not account for the developments taking place, which produce implementation difficulties at several different levels. Constraints resulting from economic concerns at European and national levels may be an obstacle for the Bologna’s contribution to a social Europe.  相似文献   
992.
Using data from the 1998 High School National Census from the Ministry of Education and Culture of Argentina, the present study examines relationships between school composition, some characteristics of schooling (such as institutional culture and climate), and students’ achievement in Mathematics in the last year of high school. The study applies multilevel linear modeling on the levels of student, school and state. It finds a close relationship between achievement in Mathematics and the variables of school composition and schooling processes. It shows that when both variables act together, the effect of all other variables significantly decreases. The variables of schooling processes, however, even when diminished in influence, nonetheless notably continue to affect students’ achievements. The study also identifes a reference model for future studies evaluating other institutional factors of learning.  相似文献   
993.
The paper proposes a theoretical and methodological framework based on a pluralistic, concerted approach to the study of activities that take place in and through speech interactions. The framework has a general scope, applying to any collective activity taking form through language interactions. It contributes to a fuller understanding of the dynamics of activity and the emergence of the phenomena observed. The framework fits a constructivist and interactionist paradigm. It allows an approach to different dimensions of the activity: communicational, functional, discursive and interlocutory. The theories, models, concepts and methods chosen to address each of the dimensions are presented. From the study of a collaborative philosophical inquiry produced in the first year of a French primary school, we illustrate the use of the framework and show how it can be enriched according to the nature of the activity studied and researchers’ aims.  相似文献   
994.
We present results from a classroom-based intervention designed to help a class of grade 10 students (14–15 years old) learn proof while studying trigonometry in a dynamic geometry software environment. We analysed some students’ solutions to conjecture-and-proof problems that let them gain experience in stating conjectures and developing proofs. Grounded on a conception of proof that includes both empirical and deductive mathematical argumentations, we show the trajectories of some students progressing from developing basic empirical proofs towards developing deductive proofs and understanding the role of conjectures and proofs in mathematics. Our analysis of students’ solutions is based on networking Boero et al.’s construct of cognitive unity of theorems, Pedemonte’s structural and referential analysis of conjectures and proofs, and Balacheff and Margolinas’ cK¢ model, while using Toulmin schemes to represent students’ productions. This combination has allowed us to identify several emerging types of cognitive unity/rupture, corresponding to different ways of solving conjecture-and-proof problems. We also show that some types of cognitive unity/rupture seem to induce students to produce deductive proofs, whereas other types seem to induce them to produce empirical proofs.  相似文献   
995.
ABSTRACT

This article describes the development of an evaluation and impact framework to assess the effectiveness of educational innovations. It can be utilized within a single program, as well as at institutional and national levels. While it is contextualized in a Chilean university, it is argued that it is widely applicable as it is informed by international best practice.

The rationale that informed the development of the evaluation framework is described and is illustrated using two programs: Faculty Learning Communities; and Student Learning Assistants. These demonstrate how the framework can be customized utilizing indicators and outcomes relevant to specific programs and stakeholders.  相似文献   
996.
高等学校的教学改革需要管理体制的改革与之相配套,建立高等学校教学运作配套管理系统组织的协同运作机制,是保证高等学校教学良性运作的关键。高等学校教学运作配套管理系统包括教学管理、学生管理、人事管理、科研管理、行政管理和后勤管理等子系统。系统的协同运作需要组织的保障,故应通过建立高等学校教学运作配套管理的高层协调机制、完善职能部门之间的沟通协商机制,构建跨职能部门协同运作机制;通过学术权力与行政权力的相互渗透,构建学术系统与行政系统协同运作机制;实行分层管理、管理重心下移,构建跨层次组织协同运作机制。  相似文献   
997.
Gagnon and Doré (1992) showed that domestic dogs are able to solve a Piagetian object permanence task called the invisible displacement problem. A toy is hidden in a container which is moved behind a screen where the toy is removed and left. Dogs make more errors in these problems than they do in visible displacement tests, in which the object is hidden directly behind the target screen. In Experiment 1, we examined components of the standard procedure of invisible displacements that may make encoding or retention of the hiding location more difficult than it is in visible displacements. In Experiment 2, we compared dogs’ performances in visible and invisible displacement problems when delays of 0, 10, and 20 sec were introduced between the object’s final disappearance and the subject’s release. The results revealed that dogs’ poorer performance in invisible displacement tests is related to the complex sequence of events that have to be encoded or remembered as well as to a difficulty in representing the position change that is signaled, but not directly perceived.  相似文献   
998.
This study examined how timing (i.e., relative maturity) and rate (i.e., how quickly infants attain proficiency) of A‐not‐B performance were related to changes in brain activity from age 6 to 12 months. A‐not‐B performance and resting EEG (electroencephalography) were measured monthly from age 6 to 12 months in 28 infants and were modeled using logistic and linear growth curve models. Infants with faster performance rates reached performance milestones earlier. Infants with faster rates of increase in A‐not‐B performance had lower occipital power at 6 months and greater linear increases in occipital power. The results underscore the importance of considering nonlinear change processes for studying infants’ cognitive development as well as how these changes are related to trajectories of EEG power.  相似文献   
999.
As a first step of a project on learning difficulties in elementary set theory, we carried out a study aimed at identifying some of the difficulties encountered by a group of 21 mathematics majors taking a course on logic and set theory. In this paper, we shall discuss one of the difficulties that we observed, namely a difficulty in conceiving a set as an object distinct from its elements, i.e. failing to fully grant sets the status of objects. This difficulty may be related to the following three types of errors that we observed in the students' first assignment: (1) confusing belonging and inclusion, (2) confusing the union of sets A, B, C, ... with the set whose elements are A, B, C, … and (3) adding or deleting curly brackets. We shall present excerpts from the students' work illustrating these three types of errors and explain how they may be related to a difficulty in conceiving a set as an object distinct from its elements.  相似文献   
1000.
Over the past 20 years, relational theories of leadership have gained increased traction in the global discourse in educational leadership. This is observable in the increased frequency with which scholars have begun to construct leadership within the sociocultural and institutional systems of different societies. This study addressed the question, “How is effective school leadership constructed in the multi-faceted education context of modern day Vietnam?” We employed a multi-site case study research design to collect qualitative data from several stakeholder groups in three Vietnamese schools. Analysis centered on describing and synthesizing how principal leadership was constructed in these settings. This study “contextualized school leadership” by describing how leadership themes of managing relationships, preserving harmony, and teacher empowerment were shaped by institutional, political and socio-cultural forces in Vietnamese society. The findings support the importance of contextualizing leadership in order to understand differences in how “effective school leadership” is constructed and understood across different societies.  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