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   4208篇
  免费   54篇
  国内免费   4篇
教育   3091篇
科学研究   284篇
各国文化   74篇
体育   365篇
综合类   1篇
文化理论   39篇
信息传播   412篇
  2022年   22篇
  2021年   43篇
  2020年   73篇
  2019年   121篇
  2018年   143篇
  2017年   162篇
  2016年   140篇
  2015年   95篇
  2014年   131篇
  2013年   973篇
  2012年   121篇
  2011年   106篇
  2010年   91篇
  2009年   103篇
  2008年   130篇
  2007年   113篇
  2006年   107篇
  2005年   101篇
  2004年   93篇
  2003年   79篇
  2002年   81篇
  2001年   56篇
  2000年   63篇
  1999年   62篇
  1998年   46篇
  1997年   47篇
  1996年   62篇
  1995年   48篇
  1994年   54篇
  1993年   38篇
  1992年   53篇
  1991年   39篇
  1990年   45篇
  1989年   37篇
  1988年   31篇
  1987年   26篇
  1986年   31篇
  1985年   27篇
  1984年   25篇
  1983年   15篇
  1982年   24篇
  1981年   33篇
  1980年   31篇
  1979年   19篇
  1978年   25篇
  1976年   21篇
  1975年   16篇
  1974年   26篇
  1973年   20篇
  1967年   15篇
排序方式: 共有4266条查询结果,搜索用时 0 毫秒
981.
Requirements for reasoning, explaining, and generalizing mathematical concepts increase as students advance through the educational system; hence, improving overall mathematical proficiency is critical. Mathematical proficiency requires students to interpret quantities and their corresponding relationships during problem‐solving tasks as well as generalizing to different contexts; both requirements are particularly challenging for many students with learning disabilities. An in‐depth review of research was completed to (1) demonstrate how interventions targeting mathematical problem solving are categorized into heuristic, semantic, or authentic approaches; (2) explore the degree to which generalization is presented in each approach; and (3) determine the efficacy of each intervention approach. Experimental studies (n = 17) demonstrating the effects of interventions designed to enhance mathematical problem solving for secondary students with or at risk of learning disabilities were analyzed. Findings indicate that the efficacy of the three intervention approaches varies, and that the real‐world connections differ. Implications for research and practice are discussed.  相似文献   
982.
983.
The school and especially the school leader's perceptions of a teacher's efficacy have influence on aspects of teaching ratings and performance, and this may facilitate or hinder beginning teacher success. This study examines the school leaders' perceptions of their beginning teachers' efficacy. The study's scope of teacher efficacy is multidimensional to include the beginning teachers' Teaching Competencies, sense of Professionalism, and Professional Identity. Of interest is the interconnectedness of these variables that contribute to the school leaders' perception. A total of 256 school leaders responded to a survey on beginning teachers' efficacy. A hypothesized model was tested. According to the analysis, while Teaching Competencies and Professional Identity did not have a significant direct impact, they each did have a significant indirect effect on perceived efficacy.  相似文献   
984.
Workplace learning has emerged as a significant site of adults' informal experiential learning, with implications for the provision and shape of formal education. There are, however, a prohibitive number of variables encumbering research into such learning. We can bypass the variables by focusing on phenomenal accounts of how professionals (in this instance) make judgements at work, underpinned by an organic logic derivable from Dewey. This article shows how to characterize a new epistemology of practice through both empirical and conceptual innovation, and thus advances the detail of this new informal workplace learning. This epistemology deals in five characteristics central to lifelong learning anyway, namely: the contingent (rather than exclusively formal, sustained, and systematic studies); the practical (rather than exclusively the theoretical); the process (rather than exclusively the assimilation of content); the particular (rather than the exclusively universal and a priori as the ‘context’); and the affective and the social domains (rather than exclusively the cognitive domain). Our fieldwork so far shows, through interview findings, how these are prominent in professional workplace judgments, and what prospects there are for further research on judgment as a site of ‘organic’ learning for adults.  相似文献   
985.
Pupil control has been described as the major problem facing our schools. Teachers have been described as reluctant to adopt innovative practices in the classroom for fear of being charged as soft on discipline. This paper reports on research designed to test the relationship of biology teachers' pupil control and their classroom practices. A sample of 68 biology teachers was selected by a stratified randomized process for the study. Two groups of teachers were compared on the variables of the Biology Classroom Activity Checklist. Analysis of the results permitted the authors to conclude that those teachers who have a more humanistic pupil control ideology may be preferred to work with the BSCS programs than those teachers who have a more custodial pupil control ideology.  相似文献   
986.
This paper examines the construct measured by automated essay scoring (AES) systems. AES systems measure features of the text structure, linguistic structure, and conventional print form of essays; as such, the systems primarily measure text production skills. In the current state-of-the-art, AES provide little direct evidence about such matters as strength of argumentation or rhetorical effectiveness. However, since there is a relationship between ease of text production and ability to mobilize cognitive resources to address rhetorical and conceptual problems, AES systems have strong correlations with overall performance and can effectively distinguish students in a position to apply a broader writing construct from those for whom text production constitutes a significant barrier to achievement. The papers begins by defining writing as a construct and then turns to the e-rater scoring engine as an example of AES state-of-the-art construct measurement. Common criticisms of AES are defined and explicated—fundamental objections to the construct measured, methods used to measure the construct, and technical inadequacies—and a direction for future research is identified through a socio-cognitive approach to AES.  相似文献   
987.
OBJECTIVE: The goal of this study was to identify links between observed conflict interactions and risk for child abuse and harsh parenting among a multiethnic sample of adolescent mothers (14-19 years) and young fathers (14-24 years). METHODS: Prior to childbirth (T1), observation-based relationship data were collected from 154 expectant adolescent couples as well as information about physical aggression between partners. Two years after childbirth (T2), data relevant to harsh disciplinary practices and child abuse-prone attitudes were collected from both young mothers and fathers. Multiple regression analyses were run to examine the correspondence between (a) couples' relationship quality prior to childbirth and (b) subsequent risk for harsh and potentially abusive parenting practices. RESULTS: Findings indicated that interpartner violence prior to childbirth predicted physically punitive parenting behavior for fathers, but not for mothers. Young mothers and fathers observed to be more warmly engaged with each other during their pre-birth couple interactions (T1) reported lower rates of physically punitive parenting behavior with their children at T2. Couples' hostility at T1 predicted fathers' level of observed hostility toward his child during a structured play activity at T2. CONCLUSIONS: Results underscore the importance of addressing the quality of couples' relations as means of preventing dysfunctional parenting practices among adolescent mothers and their partners. Adolescent mothers and their partners are at heightened risk for engaging in dysfunctional parenting, including child abuse. Focusing on pregnant adolescents and their partners, this study sought to identify interpersonal predictors of child abuse risk. Although this study did not involve administering prevention or intervention services, the goal was to test hypotheses that would inform the development of programs for young at-risk couples. PRACTICE IMPLICATIONS: The decision to recruit young couples prior to childbirth was based on the presumption that this period of time could provide a window of opportunity to administer couple-based child abuse prevention programs. Consistent with previous research on marital relations and parenting, results of this study support the idea that efforts to develop and administer preventive-intervention programs targeting at-risk couples could help reduce the occurrence of harsh parenting behavior and abuse.  相似文献   
988.
The Development of Memory and Processing Capacity   总被引:1,自引:0,他引:1  
The assumption of some developmental theories that short-term memory is the workspace of higher cognitive processes, and consequently that span measures processing capacity, is claimed to be inconsistent with the working memory literature. 4 experiments, using children aged 5 to 12 years, contrast this theory with a model in which short-term memory and the processing space component of working memory are at least partly distinct. Experiments 1 and 2 varied processing load, holding duration constant. The processing load manipulation had little effect on recall of a short-term memory preload. Experiments 3 and 4 failed to support the prediction that the greater processing efficiency of older children would be associated with slower loss of information from short-term memory. Although counting and rehearsal rates increased with age, and correlated with span, they did not predict the rate of loss of memory preload due to intervening counting. The data suggest that effects obtained with short-term memory span do not provide clear indications of overall working memory development, because short-term memory span and the processing space component of working memory entail distinct systems.  相似文献   
989.
The drive to widen access and participation in higher education is rapidly transforming the sector. Despite this, through an interplay of social, cultural and gender-related factors, students from ‘widening participation’ backgrounds can all too frequently become, within their own institutions, ‘outcasts on the inside’: formally accepted by the university without ever acquiring, still less embodying, the traditional social and cultural advantages bestowed by HE. Thus, the irony of widening participation would seem to be that by entering higher education an already disadvantaged educational habitus should be reinforced not transformed. Based on a three-year ethnographic study, this paper explores the factors motivating widening participation students to enrol in higher education, the nature of their experiences, and the extent to which higher education represents an attempt at social repositioning.  相似文献   
990.
First-grade students (N = 221) were individually tested on a battery of cognitive and achievement measures of verbal fluency, visual attention, phonological awareness, orthographic recognition, rapid automatized naming (RAN) of letters and objects, and reading. All tests were subjected to postacquisition scoring, and all RAN measures were segregated into measures of articulation time, pause time, and consistency of the pause time. Structural equation modeling demonstrated that word reading was directly and significantly predicted by RAN letter naming and general RAN cognitive processing time of objects. Moreover, RAN letter reading constructs were significantly and directly predicted by the latent variables of phonological awareness, orthographic recognition, and general RAN object articulation and cognitive processing times. RAN letter naming constructs were also significantly and indirectly predicted by visual attention. The reading model was found to be consistent with a total mediation of the relation of phonological awareness and reading through RAN letter naming and supported the validity of the RAN letter naming subtest as a basic letter reading test. These findings supported the double-deficit hypothesis for letter reading. We suggest that phonological memory is a basic factor underlying general RAN cognitive processing time of objects and domain-specific information associated with phonemes and their graphic representations.  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