Geological Tensions in an Idyllic Field     

Secord  James A.  Howells  Malcolm  Couples  Gary D.  Oldroyd  David 《Metascience》2004,13(1):1-27

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Context matters: increasing understanding with interactive Clicker Case studies     

Mary A. Lundeberg  Hosun Kang  Bj?rn Wolter  Robert delMas  Norris Armstrong  Bruno Borsari  Nancy Boury  Peggy Brickman  Kristi Hannam  Cheryl Heinz  Thomas Horvath  Maureen Knabb  Terry Platt  Nancy Rice  Bill Rogers  Joan Sharp  Eric Ribbens  Kimberly S. Maier  Mike Deschryver  Rodney Hagley  Tamar Goulet  Clyde F. Herreid 《Educational technology research and development : ETR & D》2011,59(5):645-671

Although interactive technology is presumed to increase student understanding in large classes, no previous research studies have empirically explored the effects of Clicker Cases on students?? performance. A Clicker Case is a story (e.g., a problem someone is facing) that uses clickers (student response systems) to engage students in understanding the meaning of the science contained within the story. Using an experimental randomized Solomon design across 11 institutions, we found that Clicker Cases increased student understanding more than PowerPoint lectures in large introductory biology classrooms, although there was variation across institutions and topics. By examining student performance in conjunction with faculty experience, we found that strong Clicker Cases created dissonance, captured attention and involved students in interpreting data or making decisions. This study provides a model for collaborative research across multiple institutions and demonstrates the need for using multiple institutions and topics in research on education.  相似文献   

Hands off! The practice and politics of touch in physical education and sports coaching     

Heather Piper  Dean Garratt  Bill Taylor 《Sport, Education and Society》2013,18(5):575-582

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Child abuse,child protection,and defensive ‘touch’ in PE teaching and sports coaching     

Heather Piper  Dean Garratt  Bill Taylor 《Sport, Education and Society》2013,18(5):583-598

This text introduces recently completed research on ‘no touch’ sports coaching, by placing it in a broader social context which problematises the way child abuse and child protection (or safeguarding) are conceived and discussed in terms of policy and practice. It also provides a brief indicative summary of the research findings and offers a discussion of moral panic, risk society and worst case thinking, before drawing on Foucault's work on governmentality to offer an explanation of how the current situation arose. The authors suggest that the approach to discussing child abuse, and the guidelines and training stemming from the dominant discourse, for the most part initiated by the NSPCC's Child Protection in Sport Unit, together create an environment in which many coaches and PE teachers are confused and fearful, and consequently unsure of how to be around the children and young people they teach and coach.  相似文献   

Multiphysics extension to physically based analyses of pipes with emphasis on frost actions     

Zhen Liu  Xiong Bill Yu  Jun-liang Tao  Ye Sun 《浙江大学学报(A卷英文版)》2012,13(11):877-887

Pipes, especially buried pipes, in cold regions generally experience a rash of failures during cold weather snaps. However, the existing heuristic models are unable to explain the basic processes involving frost actions. This is because the frost action is not a direct load but one that causes variations in pipe-soil interactions resulting from the coupled thermohydro-mechanical process in soils. This paper developed and implemented a holistic multiphysics simulation model for freezing soils and extended it to the analysis of pipe-soil systems. The theoretical framework was implemented to analyze both static and dynamic responses of buried pipes subjected to frost actions. The multiphysics simulations reproduced phenomena commonly observed during frost actions, e.g., ice fringe advancement and an increase in the internal stress of pipes. The influences of important design factors, i.e., buried depth and overburden pressure, on pipe responses were simulated. A fatigue cracking criterion was utilized to predict the crack initialization under the joint effects of frost and dynamic traffic loads. The frost effects were found to have detrimental effects for accelerating fatigue crack initialization in pipes.  相似文献   

A Canadian Perspective on the Uncertain Future of Distance Education     

Bill Muirhead 《Distance Education》2005,26(2):239-254

Distance education as a field of educational endeavor is at a crucial juncture in its historical development. The notion of learning at a distance has gained wide acceptance across the developed world. Instructors, physically and temporally separated from learners using newly emerging information and communication technologies, are widespread. Most postsecondary institutions have employed, or plan to develop, forms of “distance‐like” educational activities for both campus‐based and remote students. Yet, as acceptance has increased for such learning activities, many distance educators feel that they are no longer recognized as leaders in the emerging field of technology‐enhanced, hybrid, flexible learning environments. This article asks a series of questions which will help to illuminate the challenges facing distance educators at the beginning of the 21st century.  相似文献   

请相信,步行并不像看起来那样乏味     

张文慧 《海外英语》2007,(7):36-38

[1]在英国生活20年后,我和妻子决定搬回美国.我们想住在一个小城镇里,小到可以步行去商业区,最后我们定居在新罕布什尔州汉诺威市,一个典型的新英格兰城镇,舒适、安静、布局紧凑.市中心有一块大草坪,四周环绕着达特姆斯大学的古老建筑,一条古色古香的大街和绿树成荫的住宅区.  相似文献   

Teacher education for rural–regional sustainability: changing agendas,challenging futures,chasing chimeras?     

Bill Green 《Asia-Pacific Journal of Teacher Education》2004,32(3):255-273

Rural schooling has remained a concern for policy‐makers, employers, teacher education providers and schools throughout our recent history. In particular, the allegedly variable quality of teaching and learning in rural Australia is a major concern for teacher educators and educational leaders alike, with the provision of quality services for rural Australians a major equity issue in social as well as political terms. Working from an explicitly situated perspective, this paper explores these issues in relation to a set of current and recent research projects and government reports, with particular reference to a study currently exploring the articulation of teacher education and rural schooling in New South Wales. This is contextualized within a larger agenda of national and environmental sustainability which raises the key issue of social policy and educational priorities as we look forward into a radically uncertain future for teacher education, rural schooling and rural‐regional sustainability.  相似文献   

碘、溴和叠氮化物水溶液中的声化学反应     

Farooq Robina  林逢凯  黄建军  Shaukat S.F  Mukhtar S.M 《上海大学学报(英文版)》2002,6(3):255-259

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LEARNERS' EMOTIONAL AND PSYCHIC RESPONSES TO ENCOUNTERS WITH LEARNING SUPPORT IN FURTHER EDUCATION AND TRAINING     

Jocelyn  Robson  Bill  Bailey  Heather  Mendick 《British Journal of Educational Studies》2008,56(3):304-322

ABSTRACT:   This article investigates the experience of individual learners who have been allocated learning support in the further education system in England. The particular focus is on interviewees' constructions of their emotional and psychic experiences. Through the adoption of a psycho-social perspective, learners' tendency to 'idealise' their learning support workers is understood as a strategy for coping with the anxiety generated by a range of previous experiences. The implications for policy-makers are discussed.  相似文献