全文获取类型
收费全文 | 17063篇 |
免费 | 923篇 |
国内免费 | 312篇 |
专业分类
教育 | 9285篇 |
科学研究 | 4361篇 |
各国文化 | 87篇 |
体育 | 750篇 |
综合类 | 565篇 |
文化理论 | 22篇 |
信息传播 | 3228篇 |
出版年
2024年 | 34篇 |
2023年 | 150篇 |
2022年 | 305篇 |
2021年 | 495篇 |
2020年 | 680篇 |
2019年 | 629篇 |
2018年 | 458篇 |
2017年 | 463篇 |
2016年 | 598篇 |
2015年 | 530篇 |
2014年 | 898篇 |
2013年 | 1380篇 |
2012年 | 1224篇 |
2011年 | 1243篇 |
2010年 | 856篇 |
2009年 | 795篇 |
2008年 | 985篇 |
2007年 | 1126篇 |
2006年 | 1071篇 |
2005年 | 927篇 |
2004年 | 852篇 |
2003年 | 722篇 |
2002年 | 574篇 |
2001年 | 484篇 |
2000年 | 281篇 |
1999年 | 117篇 |
1998年 | 108篇 |
1997年 | 93篇 |
1996年 | 57篇 |
1995年 | 32篇 |
1994年 | 24篇 |
1993年 | 37篇 |
1992年 | 34篇 |
1991年 | 7篇 |
1990年 | 2篇 |
1989年 | 3篇 |
1987年 | 8篇 |
1985年 | 2篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1979年 | 4篇 |
1978年 | 1篇 |
1977年 | 2篇 |
1957年 | 5篇 |
排序方式: 共有10000条查询结果,搜索用时 125 毫秒
61.
Adele Eskeles Gottfried Kathleen Suzanne Johnson Preston Allen W. Gottfried Pamella H. Oliver Danielle E. Delany Sirena M. Ibrahim 《International Journal of Science Education》2016,38(12):1972-1995
Curiosity is fundamental to scientific inquiry and pursuance. Parents are important in encouraging children’s involvement in science. This longitudinal study examined pathways from parental stimulation of children’s curiosity per se to their science acquisition (SA). A latent variable of SA was indicated by the inter-related variables of high school science course accomplishments, career interest, and skill. A conceptual model investigated parental stimulation of children’s curiosity as related to SA via science intrinsic motivation and science achievement. The Fullerton Longitudinal Study provided data spanning school entry through high school (N?=?118). Parental stimulation of curiosity at age 8 years comprised exposing children to new experiences, promoting curiosity, encouraging asking questions, and taking children to a museum. Intrinsic motivation was measured at ages 9, 10, and 13 years, and achievement at ages 9, 10, and 11 years. Structural equation modelling was used for analyses. Controlling for socio-economic status, parental stimulation of curiosity bore positive and significant relations to science intrinsic motivation and achievement, which in turn related to SA. Gender neither related to stimulation of curiosity nor contributed to the model. Findings highlight the importance of parental stimulation of children’s curiosity in facilitating trajectories into science, and relevance to science education is discussed. 相似文献
62.
Amelia Peterson 《International Journal of Research & Method in Education》2016,39(3):299-313
ABSTRACTAs a systemic approach to improving educational practice through research, ‘What Works’ has come under repeated challenge from alternative approaches, most recently that of improvement science. While ‘What Works’ remains a dominant paradigm for centralized knowledge-building efforts, there is need to understand why this alternative has gained support, and what it can contribute. I set out how the core elements of experimental and improvement science can be combined into a strategy to raise educational achievement with the support of evidence from randomized experiments. Central to this combined effort is a focus on identifying and testing mechanisms for improving teaching and learning, as applications of principles from the learning sciences. This article builds on current efforts to strengthen approaches to evidence-based practice and policy in a range of international contexts. It provides a foundation for those who aim to avoid another paradigm war and to accelerate international discussions on the design of systemic education research infrastructure and funding. 相似文献
63.
64.
The mechanical transmission of motion, which is observable in gears’ turning direction (TD) and turning speed (TS) can be understood as part of the core concept “force and motion”. Previous studies have suggested that most children before the age of nine have naïve concepts of gears’ TD and TS. However, these studies relied on children's explanation data and might have therefore underestimated young children's potential. Moreover, these studies did not examine whether preschoolers can overcome their naïve concepts through teaching. Recently, educators have proposed guided play as an educational approach that combines children's play with teacher guidance in a purposefully designed environment. We conducted two subsequent studies. In Study 1, we investigated the children's (naïve) concepts of gears’ TD and TS with a cross‐sectional approach using a nonverbal test procedure. This study comprised 248 children aged 5–10 years and 73 adults. The results showed that the proportion of children with adequate concepts increased with age. More specifically, 7‐ to 8‐year‐olds differed significantly from 5‐ to 6‐year‐olds, indicating a developmental shift around this age. However, naïve concepts of TS were more persistent with age than naïve concepts of TD. Altogether, the results indicated the potential to foster 5‐ to 6‐year‐olds’ concepts of both TD and TS in an intervention. Thus, in Study 2, we developed and tested a guided play intervention to foster 5‐ to 6‐year‐old children's concepts of TD and TS. We conducted a prepost‐intervention design with a guided play group (n = 19) and a free play group (n = 21). The results suggested stronger learning gains in the guided play group (dTD = 0.337, dTS = 0.758) than in the free play group (dTD = 0.224, dTS = 0.158). 相似文献
65.
Role-play simulations have become commonly used active learning methods to teach about complex, dynamic political processes. However, an understanding of why there is variation in student learning during such simulations is lacking. This study focuses on the development of student self-efficacy in negotiating over the period of one simulation. We investigate to what extent self-efficacy development can be explained by the individual characteristics of students. This study further contributes to the field by including perceived student cohesiveness as a social aspect of the simulation. Data from 84 participants were collected during a four-day Model United Nations (MUN) simulation. Self-efficacy in negotiating was measured using 12 measurement times, and the data analysed using multilevel growth modelling. Results show a statistically significant linear increase in self-efficacy in negotiating over the period of the simulation. Compared to the time factor, individual characteristics explain variation in self-efficacy development to a larger extent, of which perceived student cohesiveness contributes the most. 相似文献
66.
Entrenched socioeconomic inequalities in achievement have been observed in international assessments for decades, with previous research suggesting that these inequalities may be exacerbated by differentiation in the opportunities provided to various social groups. Much previous research in this field has been US-based or subject to measurement issues. This study investigated socioeconomic inequalities in outcomes and opportunities using four cycles of international assessment data across 78 countries. Further, the paper questions whether inequalities in opportunities are related to inequalities in outcomes. The findings indicate global social inequalities in mathematics and science outcomes, while inequality of opportunity was particularly concentrated in economically advanced countries. Little evidence of the perpetuation of socioeconomic inequality in achievement through differentiated educational provision was found. 相似文献
67.
随着时代的进步与发展,小学科学早已被学校当成培养学生创新能力、创新思维以及动手能力的一门课程。尤其是把信息技术与小学科学整合起来,既能使教学方式更加灵活、多样,内容更加丰富、充实,也能改变传统小学科学教学模式,激发学生兴趣,唤醒学生的创新意识,为新时代小学生全面发展奠定基础。 相似文献
68.
新一轮基础教育课程改革特别强调学生科学核心素养的获得。《小学科学课程标准》也明确提出了培养学生以科学探究精神为核心的核心素养。作为一名小学科学教师,在教学的过程中要持续关注基础科学知识的讲解和传授,也需要通过基础理论引导帮助学生形成一定的科学探究意识,引导他们在实验操作的过程中能够认真思考,提高实践能力。本文就以构建小学科学高效课堂,培养学生科学核心素养为基础性内容,进一步探讨培养策略问题。 相似文献
69.
The article offers unique insights into international and domestic graduates’ career progression and social mobility experiences in China. Drawing on in-depth interview data with master-level graduates, the analytical results reveal that the majority of the participants (both domestic and international) perceive that international graduates have more opportunities and better career progression, but the analytical results show that both domestic and international graduates secured positive employment outcomes. Significant gender disparities exist, as women, both international and domestic graduates, are still disadvantaged in terms of occupational attainment and career prospects and report lower employment satisfaction. All domestic graduates reported not only positive employment outcomes in the labour market but upward social mobility. In contrast, the majority of international graduates reported not having achieved the same level of social status as their parents. Graduates’ differentiated relations to China’s state institutions of Bianzhi, Danwei and Hukou and social connections (Guanxi) heavily influenced their employment trajectories and social mobility. We argue that the participants’ conflicting perceptions are linked to the intense labour market competition encouraged by the sustained expansion of domestic higher education enrolment and amplified by the increasing number of international graduates. The societal institutions defuse to some extent conflicts over economic interests arising from the marketisation of social life. 相似文献
70.
This article explores the social determinants of adolescents’ access to education during the COVID-19 pandemic in three diverse urban contexts in Bangladesh, Ethiopia and Jordan. It provides novel empirical data from the Gender and Adolescence: Global Evidence longitudinal study, drawing on phone surveys (4441), qualitative interviews with adolescents aged 12–19 years (500), and key informant interviews conducted between April and October 2020. Findings highlight that the pandemic is compounding pre-existing vulnerabilities to educational disadvantage, and that gender, poverty and disability are intersecting to deepen social inequalities. The paper concludes by reflecting on policy implications for inclusive distance education in emergencies. 相似文献