解决分布式需求的内在冲突

2006年8月,GEN(I网络创新的全球化环境)项目组公布其项目的设计原则。来自普林斯顿大学、麻省理工大学、华盛顿大学等学校的十二位专家编写了这份报告。该报告阐述了GENI的研究范围、用户的需求、需求的内在压力,以及工程设计的原则。报告指出了GENI的价值主张,广泛的部署、多样化可扩展的网络技术集合、对真实用户流量的支持仍是GENI关注的原则和方向。上期已经介绍第一部分——“分布式需求定义GENI的重心”,本期刊出第二部分——“解决分布式需求的内在冲突”。     

Boundary Crossing and the Professional Learning of Teacher Educators in New International Contexts

In this collaborative self-study, two teacher educators examine their experiences of working in new international contexts and the impact of those experiences on their professional learning and identities. Mandi moved from a major research university in one country to another, while Judy co-led a group of pre-service teachers on an international practicum for three weeks each year for three years. Using the concept of boundary crossing as a theoretical and analytical framework, each teacher educator identified a boundary-related critical incident or experience that occurred during her work in new international contexts. Through individual and collaborative analysis of their critical incidents, they found that working as a teacher educator in new international contexts involves the crossing and re-crossing of multiple personal, professional, linguistic and cultural boundaries. Working in these boundary spaces involved learning how to negotiate new kinds of relationships with colleagues and students, manage changed roles and responsibilities and, ultimately, a search for a renewed sense of self, as each sought to understand herself differently within a new professional context.     

The MacArthur Communicative Development Inventory: Normative Data for American Sign Language

To This is a 1 test per thousand learn more about normal language development in deaf children, we have developed the MacArthur Communicative Development Inventory for American Sign Language (ASL-CDI), a parent report that measures early sign production. The ASL-CDI is an inventory of sign glosses organized into semantic categories targeted to assess sign language skills in children ages 8 to 36 months. The ASL-CDI uses a recognition format in which parents check off signs that their child produces. The form has demonstrated excellent reliability and validity. To date, normative data have been collected from 69 deaf children with deaf parents who are learning sign language as a first language. We discuss the development of the ASl-CDI and preliminary cross-sectional and longitudinal findings from this early data collection with particular focus on parallels with spoken language acquisition. We also discuss the acquisition of first signs, negation, wh-questions, and fingerspelling with developmental patterns provided based on age, as well as vocabulary size.     

What Teachers and Headteachers Think about Inspection

This is a study of 14 inspections of primary and secondary schools carried out by local inspectors in five widely separated areas during 1992 and 1993. The inspection approaches varied and in two cases followed the new OFSTED pattern. Reactions to inspection were gathered through interviews with headteachers and discussions with groups of teachers. Teachers’ reactions are described in relation to: the preparation for inspection; the inspectors as individuals; the inspection process; reporting and follow‐up. It is suggested that some of the concerns associated with these issues will be met by the new OFSTED arrangements. However, OFSTED practice may be less satisfactory in meeting other concerns such as the provision of adequate teacher feedback and the organisation of follow‐up advice and support     

Quality assessment and quality assurance in distance teacher education

Governments around the world have increasingly used distance education (DE), both preservice and inservice, to overcome conventional, campus‐based programme constraints in funding, access and student places. DE programmes have shown that they can expand assess to teacher education, but still need to demonstrate that they can produce teachers of the quality needed for today's schools. Quality assessment systems have been developed, using either examinations or impact studies, to demonstrate programme effect on graduate outcomes related to good teaching. Quality assurance systems have been designed, based on the concept of the ‘learning organisation’, to assure continuous improvement in programme conditions related to the desired outcomes. Quality assessment and assurance systems are reviewed and some examples of quality DE programmes presented.