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   5328篇
  免费   73篇
  国内免费   49篇
教育   3626篇
科学研究   190篇
各国文化   97篇
体育   733篇
综合类   436篇
文化理论   16篇
信息传播   352篇
  2024年   2篇
  2023年   23篇
  2022年   23篇
  2021年   71篇
  2020年   108篇
  2019年   89篇
  2018年   99篇
  2017年   103篇
  2016年   133篇
  2015年   157篇
  2014年   319篇
  2013年   615篇
  2012年   392篇
  2011年   473篇
  2010年   308篇
  2009年   248篇
  2008年   308篇
  2007年   406篇
  2006年   274篇
  2005年   304篇
  2004年   243篇
  2003年   208篇
  2002年   168篇
  2001年   146篇
  2000年   112篇
  1999年   37篇
  1998年   24篇
  1997年   18篇
  1996年   12篇
  1995年   7篇
  1994年   4篇
  1993年   4篇
  1992年   2篇
  1991年   2篇
  1985年   1篇
  1982年   1篇
  1981年   1篇
  1979年   2篇
  1977年   2篇
  1976年   1篇
排序方式: 共有5450条查询结果,搜索用时 31 毫秒
991.
This study was launched from a National Science Foundation GK-12 grant in which graduate fellows in Science, Technology, Engineering, and Mathematics (STEM) are placed in classrooms to engage K-12 students in STEM activities. The investigation explored whether the STEM Fellows' presence impacted the K-12 students' stereotypical image of a scientist. Since finding a valid instrument is critical, the study involved (1) determining the validity of the commonly administered Draw-A-Scientist Test (DAST) against a newly designed six-question survey and (2) using a combination of both instruments to determine what stereotypes are currently held by children. A pretest–posttest design was used on 485 students, grades 3–11, attending 6 different schools in suburban and rural Maine communities. A significant but low positive correlation was found between the DAST and the survey; therefore, it is imperative that the DAST not be used alone, but corroboration with interviews or survey questions should occur. Pretest results revealed that the children held common stereotypes of scientists, but these stereotypes were neither as extensive nor did they increase with the grade level as past research has indicated, suggesting that a shift has occurred with children having a broader concept of who a scientist can be. Finally, the presence of an STEM Fellow corresponded with decreased stereotypes in middle school and high school, but no change in elementary age children. More research is needed to determine whether this reflects resiliency in elementary children's perceptions or limitations in either drawing or in writing out their responses.  相似文献   
992.
This study is part of a large-scale project focused on ‘Qatari students' Interest in, and Attitudes toward, Science’ (QIAS). QIAS aimed to gauge Qatari student attitudes toward science in grades 3–12, examine factors that impact these attitudes, and assess the relationship between student attitudes and prevailing modes of science teaching in Qatari schools. This report details the development and validation of the ‘Arabic-Speaking Students' Attitudes toward Science Survey’ (ASSASS), which was specifically developed for the purposes of the QIAS project. The theories of reasoned action and planned behavior (TRAPB) [Ajzen, I., & Fishbein, M. (2005). The influence of attitudes on behavior. In D. Albarracín, B. T. Johnson, & M. P. Zanna (Eds.), The handbook of attitudes (pp. 173–221). Mahwah, NJ: Erlbaum] guided the instrument development. Development and validation of the ASSASS proceeded in 3 phases. First, a 10-member expert panel examined an initial pool of 74 items, which were revised and consolidated into a 60-item version of the instrument. This version was piloted with 369 Qatari students from the target schools and grade levels. Analyses of pilot data resulted in a refined version of the ASSASS, which was administered to a national probability sample of 3027 participants representing all students enrolled in grades 3–12 in the various types of schools in Qatar. Of the latter, 1978 students completed the Arabic version of the instrument. Analyses supported a robust, 5-factor model for the instrument, which is consistent with the TRAPB framework. The factors were: Attitudes toward science and school science, unfavorable outlook on science, control beliefs about ability in science, behavioral beliefs about the consequences of engaging with science, and intentions to pursue science.  相似文献   
993.
ABSTRACT

This study used an experimental, pretest-posttest control group design to investigate whether participation in a large-scale inquiry project would improve primary teachers’ attitudes towards teaching science and towards conducting inquiry. The inquiry project positively affected several elements of teachers’ attitudes. Teachers felt less anxious about teaching science and felt less dependent on contextual factors compared to the control group. With regard to attitude towards conducting inquiry, teachers felt less anxious and more able to conduct an inquiry project. There were no effects on other attitude components, such as self-efficacy beliefs or relevance beliefs, or on self-reported science teaching behaviour. These results indicate that practitioner research may have a partially positive effect on teachers’ attitudes, but that it may not be sufficient to fully change primary teachers’ attitudes and their actual science teaching behaviour. In comparison, a previous study showed that attitude-focused professional development in science education has a more profound impact on primary teachers’ attitudes and science teaching behaviour. In our view, future interventions aiming to stimulate science teaching should combine both approaches, an explicit focus on attitude change together with familiarisation with inquiry, in order to improve primary teachers’ attitudes and classroom practices.  相似文献   
994.
ABSTRACT

We investigated students’ perceptions related to psychological constructs in their science classes and the influence of these perceptions on their science identification and science career goals. Participants included 575 middle school students from two countries (334 students in the U.S. and 241 students in Iceland). Students completed a self-report questionnaire that included items from several measures. We conducted correlational analyses, confirmatory factor analyses, and structural equation modelling to test our hypotheses. Students’ class perceptions (i.e. empowerment, usefulness, success, interest, and caring) were significantly correlated with their science identification, which was correlated positively with their science career goals. Combining students’ science class perceptions, science identification, and career goals into one model, we documented that the U.S. and Icelandic samples fit the data reasonably well. However, not all of the hypothesised paths were statistically significant. For example, only students’ perceptions of usefulness (for the U.S. and Icelandic students) and success (for the U.S. students only) significantly predicted students’ career goals in the full model. Theoretically, our findings are consistent with results from samples of university engineering students, yet different in some ways. Our results provide evidence for the theoretical relationships between students’ perceptions of science classes and their career goals.  相似文献   
995.
混合学习的研究现状和趋势分析   总被引:1,自引:0,他引:1  
混合学习是一种新型的学习方式,当前,受到国内外学者的广泛关注。文章采用HistCite、CiteSpace II科学知识图谱软件,对国际混合学习研究的时空分布、核心作者和期刊、关键文献、研究热点和前沿进行了可视化分析,从而把握国际混合学习的研究现状和未来的发展趋势,以期为同类研究提供参考。  相似文献   
996.
Given that children in Germany with a lower socio‐economic status (SES) are over‐represented at general secondary schools, the present study aimed to examine the impact of children’s SES on attitudes towards computers. The results suggest that compared to average SES students, children from deprived socio‐economic backgrounds perceive the computer as important but remain generally more cautious towards computers, despite being exposed to a “technologically rich environment”, where computer‐based instruction is part of the curriculum and ensures frequent access to high quality ICT devices. The findings add further support to the notion that the mere provision of ICT access is not sufficient to close the digital divide. Rather, the extent of support that low SES children receive from their social network and prevailing stereotypes with respect to ICT proficiency, seem to be salient variables which require further investigation.

Zugang, Einstellungen und die digitale Kluft: die Einstellungen von Kindern zu Computern in einer technologie‐geprägten Umgebung

In Anbetracht dessen, dass Kinder in Deutschland mit einem niedrigeren sozioökonomischen Status (SES) bei allgemeinen Höheren Schulen überrepräsentiert sind, hatte die vorliegende Studie zum Ziel, den Einfluss des SES von Kindern auf Einstellungen zu Computern zu untersuchen. Die Ergebnisse legen nahe, dass im Vergleich zu SES‐durchschnittlichen Studenten Kinder mit sozial benachteiligten sozioökonomischen Hintergründen den Computer als wichtig wahrnehmen, aber allgemein zurückhaltender gegenüber Computern bleiben. Trotzdem wurden sie einer “technologisch reichen Umgebung” ausgesetzt, wo Computer Instruktion stützte, ein Teil des Lehrplans ist und häufigen Zugang zu ICT Geräten hoher Qualität sicherte. Die Ergebnisse der Studie legen nahe, dass die bloße Bestimmung des ICT‐Zugangs nicht ausreichend ist, um auf eine digitale Kluft zu schließen. Eher scheinen sie das Ausmaß der Unterstützung, dass als niedrig‐SES bewertete Kinder von ihrem sozialen Netz und vorherrschenden Stereotypien in Bezug auf ICT Kenntnisse erhalten, wichtige Variablen zu sein, die weitere Untersuchungen erfordern.

Accès, attitudes et fossé numérique: les attitudes des enfants par rapport aux ordinateurs dans un environnement riche en technologie

Etant donné qu’en Allemagne les enfants venant d’un niveau socio‐économique plus bas (NSE) sont sur‐représentés dans les écoles secondaires générales,la présente étude avait pour objet d’étudier l’impact du niveau socio économique des enfants sur leur attitude par rapport aux ordinateurs. Les résultats permettent de penser que, si on les compare aux élèves NSE moyens, les enfants venant de milieux socio économiques défavorisés, perçoivent l’importance de l’ordinateur mais restent généralement plus prudents vis‐à‐vis de l’informatique bien qu’ils aient été exposés à «un environnement riche en technologie» o[ugrave] l’enseignement fondé sur l’ordinateur fait partie du cursus et assure un accès fréquent à des systèmes TIC de grande qualité. Ces résultats renforcent également la notion selon laquelle le seul fait de fournir un accès TIC ne suffit pas à lui seul pour combler la fracture numérique. A la vérité, l’ampleur du soutien que les enfants de milieux socio économiques défavorisés reçoivent de leur réseau social et les stéréotypes en vigueur par rapport aux compétences informatiques, semblent constituer des variables frappantes qui nécessitent des études plus approfondies.

Acceso, actitudes y la brecha digital: algunas actitudes de los niños acerca de los ordenadores en entornos ricos en tecnologías

Considerando que en Alemania los niños procedentes de niveles socio económicos (NSE) bajos están sobrerepresentados en en las escuelas secundarias generales, el objetivo del presente estudio era de examinar el impacto del nivel socioeconómico de esos niños sobre sus actitudes acerca de los ordenadores. Los resultados nos llevan a pensar que en comparación con el promedio de los alumnos NSE, los niños procedentes de familias desfavorecidas perciben indudablemente el ordenador como una cosa importante pero generalmente permanecen más cautelosos acerca de los ordenadores aunque están expuestos a entornos ricos en tecnologías en los cuales la enseñanza basada en los ordenadores forma parte del curriculo y garantiza un acceso frecuente a aparatos informáticos de alta calidad. Esos resultados demuestran con más fuerza que la mera provisión de un acceso a las TICs no es suficiente para compensar la brecha digital. Al contrario el grado de apoyo que los niños de NSE bajo reciben de su red social así como los estereotipos comunes acerca de la competencia informática, parecen constituír variables destacadas que necesitan investigaciones minuciosas.  相似文献   
997.
In recent years, a discourse is emerging in education that emphasises the study of the impact of in-service teacher education on student outcomes (more often than not student outcomes are seen in the form of test scores of academic achievement). Implicit in this discourse is the view that the impact of in-service teacher education is directly observable on students' outcomes, suggesting that the variables in a school or classroom are connected in some kind of a causal link. However, it is problematic to view variables in a social setting such as a school or a classroom as being in causal relationships because social settings are complex so that it is not possible to control the variables or the outcomes. Hence, one cannot convincingly study the outcomes without also studying the process and its complexity. In this article, I describe an action research study undertaken to study the impact in the classroom, of new teaching strategies introduced as part of an in-service teacher education programme in Karachi, Pakistan. By describing this study I mean to suggest that action research is an appropriate methodology to study the impact of in-service teacher education.  相似文献   
998.
1938年冬到1944年秋的抗战时期,桂林抗战文化城曾开展过丰富多彩的文化活动。当时的桂林一跃成为“中国南部的心脏”、“华南文艺的据点”。当时的翻译活动,特别是文学翻译活动空前繁荣,尤以英诗汉译成果最盛。  相似文献   
999.
《教育世界》是我国最早的教育专业杂志,发起人为罗振玉。他通过《教育世界》,将西方的教育制度、教育思想、教育方法和图书馆学思想系统地向国内传播;在立足国情、放眼世界的基础上,作为杂志发起人的罗振玉向清政府提出了建设京师图书馆的宏伟构想,并得到了清政府的积极响应和大力推行,《教育世界》对推动我国公共图书馆的建设有“开基”之功;《教育世界》将近代西方图书馆新异的办馆体制、运行模式介绍到国内,有力地促进了清末图书馆运动的发展,对我国近代图书馆建设有积极意义。  相似文献   
1000.
This close textual analysis of President Clinton's discourses in ceremonies commemorating the fiftieth anniversary of D-Day, held on June 6, 1994, considers the rhetorical context and discursive strategies of the president on an international stage. It argues that Clinton employed generational comparisons to emphasize the gifts bequeathed by an older generation and the obligation to advance the goals of democracy in a new era. The four speeches analyzed provide evidence of the force of prudential reasoning in commemorative situations.  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