共查询到20条相似文献,搜索用时 9 毫秒
1.
2.
3.
4.
Vasant Natarajan 《Resonance》2013,18(1):39-50
We discuss the absorber theory of radiation as put forward by Wheeler and Feynman. We show that it gives a better understanding of the photon compared to the usual quantum electrodynamics (QED) picture. 相似文献
5.
6.
《Africa Education Review》2013,10(2):381-390
AbstractWhether or not a school is dysfunctional depends largely on how dysfunctionality in schools is defined and measured. Dysfunctionality, as any construct, is subject to definition and interpretation, and it is thus always marked by perspectivism. But regardless of the definition games occasionally played by academics, some form of reality takes place beyond the constructivist horizon. Moreover, perspectivism and definition games may justify and even create adverse consequences within a school's lived reality. A definition focussing on Grade 12 pass rates, for example, tends to implicate teachers, while a definition focussing on infrastructure tends to exculpate teachers and incriminate government and administration. Accordingly, this article will not end but begin with the adage that a dysfunctional school is what one defines a dysfunctional school to be, and it will explore the conditions and consequences of conceptual variations. 相似文献
7.
8.
GEOFFREY HINCHLIFFE 《Journal of Philosophy of Education》2011,45(3):417-431
This article analyses the nature of an educational experience by taking as its starting point Dewey's Art as Experience in order to identify what it is that counts as a significant or worthwhile experience. Dewey suggests that an experience needs to have an integral character in which the different phases of the experience are related and which tends towards a conclusion. Furthermore, an experience also needs to have the character of what Dewey calls an ‘undergoing’, an engagement with content which may be difficult or painful. It is suggested that this kind of experience may be seen in terms of a ‘light’ pedagogy in which content is allowed to unfold. This is contrasted with educational experiences that are ‘teacher‐driven’ or ‘learner‐driven’. 相似文献
9.
Ron Fllinger 《Performance Improvement》1985,24(2):C12-C12
10.
11.
Patricia Humphrey 《Teaching Statistics》2012,34(1):18-20
An in‐class activity is described that can be used not only to motivate hypothesis testing, but also to understand and compute the p‐value and power in a statistical test. 相似文献
12.
Everybody is familiar with the ubiquitous term ‘species’. But what is a species? Undeniably, this is one of the most complex dilemmas in the history of biology. There is no other concept in biology as elementary yet controversial as the concept of species. In practice, a species is regarded as the fundamental unit of comparison in all biological disciplines like systematics, evolution, ecology, ethology, physiology, and genetics. However, little agreement exists in the scientific community regarding the nature of species, whether it is a real entity or a cultural artifact, its biological significance or how to delineate a species. This article is a review of the seemingly endless debate on the species concept and its implications. 相似文献
13.
14.
B. S. Shylaja 《Resonance》2012,17(5):487-492
The event of Venus passing in front of the Sun is called the transit. This is equivalent to an eclipse with the Moon replaced by the planet Venus. In this article, the rarity and importance of the event and the historical explorations are discussed. 相似文献
15.
16.
17.
18.
19.
20.
邵莉勤 《语数外学习(初中版)》2006,(11)
Yon can find it everywhere.Yon can touch it or feel it.But it can’t be eaten and can’t be drunk.There is air in it.There is water in it.Because it has much nutrition(营养物)which plants live on it,and we 相似文献