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151.
David D. Williams Joseph B. South Stephen C. Yanchar Brent G. Wilson Stephanie Allen 《Educational technology research and development : ETR & D》2011,59(6):885-907
This study employed a qualitative research design to investigate how instructional designers use evaluation in everyday design
practice. While past research has examined how designers spend their time, how they generally make decisions, and expert-novice
differences, little attention has been paid to use of context, input, process, or product evaluation, from the perspective
of practicing designers. Based on interviews of practitioners, our findings included ten themes regarding how designers use
evaluation to improve their products. While these results substantiate to some degree the claim that practitioners believe
clients will not pay for formal evaluations, they also suggest that practitioners use evaluation in important but less formal
ways. Other conclusions regarding the role of evaluation in design are provided and future directions for training and research
are discussed. 相似文献
152.
Akindele Matthew Ige 《Early Childhood Education Journal》2011,39(2):161-167
Early childhood is a critical period of rapid physical, cognitive, and psycho-social development of a child. The quality of
care and education which a child receives at this crucial age will determine to a great extent the level of his/her physical
and cognitive development in the future. In Nigeria, Early Childhood Care, Development and Education (ECCDE) is an aspect
of Universal Basic Education which was introduced in 1999 to increase the access of children to basic education and improve
the state of education in the country. While all hands are on deck to ensure successful implementation and achievement of
the objectives of the scheme, it is unfortunate that ECCDE is facing some challenges thus making it unrecognized in Nigeria.
This paper examines the challenges of early childhood education in Nigeria. To improve the situation, the following measures
are recommended: establishment of more public crèche, kindergarten, and nursery schools by the government; enforcement of
the use of mother tongue in the teaching of children; training more personnel in the field of early childhood education in
tertiary institutions; and introducing unified curriculum as well as providing more infrastructures. 相似文献
153.
David Devraj Kumar P. V. Thomas John D. Morris Karen M. Tobias Mary Baker Trudy Jermanovich 《Journal of Science Education and Technology》2011,20(2):116-115
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
154.
Lynne Cherry 《Journal of Science Education and Technology》2011,20(2):208-213
Lynne Cherry Brandwein Lecture March 2010 National Science Teachers Association (NSTA) Conference, Philadelphia, PA. Young
Voices on Climate Change: Inspired and Empowered Youth Tackle Climate Science and Find Climate Solutions. As a child, Lynne
Cherry was profoundly connected to the natural world and a special place. She watched the destruction of her world. Now, through
her Young Voices on Climate Change project, she is trying to give teachers and young people the tools to prevent planetary
meltdown on a greater scale. Global climate change is upon us and the need for education and action is immediate. Outreach,
visual storytelling, and scientific understanding are especially necessary in light of the recent polls that show that the
public is becoming more confused and less concerned about climate change. Cherry’s climate book, co-authored with photojournalist
Gary Braasch, and her Young Voices on Climate Change films feature climate solutions. They’re about win–win—save the environment,
protect human health, reduce global warming gases, demonstrate youth making a difference with practical tools, motivate engagement
in climate science, take pride in increased science literacy, reach young people through their hearts as well as their minds,
and save money. Although young people can help their parents, peers and communities understand climate science, they can also
show them that reducing CO2 is in their economic interest, and spur them to take action. School carbon reduction initiatives are spilling over into communities
yielding measurable results in both global warming gas reductions and significant monetary savings. 相似文献
155.
Part II of “Reclaiming Kindergarten” continues the discussion related to responding to the crisis in today’s kindergarten.
In Part II, two policy questions are posed, the answers to which seek to respond to this continuing crisis. The questions
center on issues related to engaging families in kindergarten and the need to consider a new early childhood paradigm where
kindergarten is part of a continuous and seamless educational experience spanning prekindergarten through third grade. As
in Part I, examples of classroom practice are used to illustrate the effective implementation of these principles in a kindergarten
classroom. 相似文献
156.
Drawing on their experience in a Midwest healthcare system, the authors propose a model of leadership development through action learning that embraces ‘concentric collaboration’ at its core. The present study suggests that the process of concentric collaboration can serve to strengthen the skills of the individual leader as well as foster collective leadership. Central to the model is the growth and development of the individual leader which extends outward to create connections with others, ultimately increasing the social capital necessary to effect organizational change. This work contributes to the leadership development literature by offering a comprehensive model that includes the process of individual growth as well as collective capacity, organizational factors that support or inhibit this process as well as implications for practice. 相似文献
157.
Michael R. Olneck 《Asia Pacific Education Review》2011,12(4):675-690
Multicultural policy in South Korea faces variants of challenges endemic to multiculturalism. These challenges are “dilemmas
of difference,” “variable terms of inclusion,” and “legitimacy.” In Korea, these challenges arise in a setting in which ethnic
diversity is of relatively recent origin, an ideology of ethnic homogeneity is prevalent, and official multicultural policy
is limited in its reach to those who are designated as “multicultural families,” that is families in which one spouse is Korean
and the other an immigrant, usually the wife, and their offspring. The exclusion of migrant workers and their families from
Korea’s multicultural framework poses a core contradiction in Korean multicultural policies. This contradiction must be resolved
if multiculturalism in education and other spheres is to promote equality and provide a foundation for national integration
on terms that are equitable to the diverse constituents of Korean society. Inevitably, this will require a redefinition of
what it means to “be Korean.” Even if multicultural policies fall short in their immediate effects on those toward whom they
are directed, multiculturalism represents a significant shift in the discourse of Korean identity and will be terrain on which
the status of diverse groups in Korea will be contested. 相似文献
158.
Miguel Antonio Lim 《Higher Education》2018,75(3):415-430
University rankers are the subject of much criticism, and yet they remain influential in the field of higher education. Drawing from a two-year field study of university ranking organizations, interviews with key correspondents in the sector, and an analysis of related documents, I introduce the concept of weak expertise. This kind of expertise is the result of a constantly negotiated balance between the relevance, reliability, and robustness of rankers’ data and their relationships with their key readers and audiences. Building this expertise entails collecting robust data, presenting it in ways that are relevant to audiences, and engaging with critics. I show how one ranking organization, the Times Higher Education (THE), sought to maintain its legitimacy in the face of opposition from important stakeholders and how it sought to introduce a new “Innovation and Impact” ranking. The paper analyzes the strategies, methods, and particular practices that university rankers undertake to legitimate their knowledge—and is the first work to do so using insights gathered alongside the operations of one of the ranking agencies as well as from the rankings’ conference circuit. Rather than assuming that all of these trust-building mechanisms have solidified the hold of the THE over its audience, they can be seen as signs of a constant struggle for influence over a skeptical audience. 相似文献
159.
1 Introduction Therateddistanceisoneofkeyfactorstolimitthedevelopmentofelectricvehicle (EV)sinceEVwasin vented .Itisawayforincreasingtherateddistancetoputtheadvancedenergyregenerationtechnologyintouse .Manyexperimentsprovethattheactualrateddistanceofaelectricscooterunderthecityroadsur roundingsisabout 35 - 45kmwhileitisabout 5 5 - 6 5kmunderthestandard proving ground .Moreover ,JapanToyotaalsoprovedthattherateddistancecouldbeincreasedby 2 0 %whenusingtheenergyregenera tionsysteminEV .Soi… 相似文献
160.
Boronising of steels is a hardening process to get high surface hardness. The erosion resistance of boronised steels was researched with the use of four kinds of erodent, i.e. glass, alumina, quartz and silicon carbide. The erosion rate increases rapidly with erodent hardness and severe erosion occurs with high impacting angle range of hard particles. SEM analysis indicated that chipping is caused by repetitive impacting of glass and quartz, whereas by alumina and silicon carbide impacting, chipping, and that plastic flow take place simultaneously and the erosion rate reaches the peak value when the impacting angle is above 60°. 相似文献