Using Web-Based Cases to Enhance,Extend, and Transform Pre-Service Teacher Training

Abstract

This study was part of a two-year review regarding the use of Web-based case conferencing to enhance, extend, and transform the learning of pre-service teachers in an introductory educational psychology course. First, Web conferencing enhanced the learning opportunities within educational psychology by providing an electronically shared space for hundreds of students to share, discuss, and reflect on case situations common in K-12 school settings. Second, this environment extended learning by including students from other universities and countries. Finally, instead of strictly relying on instructor cases and commentary, the Web transformed the learning process by allowing students to generate cases online and provide timely and relevant peer feedback. Across the two years of this study, students generated more than a thousand case situations that tended to focus on classroom management, motivation, and controversial issues or hot topics. Within these case situations, students were extremely task focused and offered each other extensive peer feedback. Despite many positive findings, various problems were encountered such as procrastination, limited text referencing, and few justified statements. Several future directions and recommendations are outlined.     

Disabled e‐nation: telecommunications,disability, and national policy

This article considers questions of technological change, innovation, and communication from a disability perspective. Using a critical social perspective on disability, we offer an Australian case study to analyse disability in national telecommunications policy. In doing so, we critique the systemic lack of incorporation of disability in national visions, policies, and programmes. Accordingly, we argue for a cohesive, and genuine commitment to incorporating disability considerations in all areas of information and communication technology policy and scholarship.     

营改增对电信业的SWOT分析

随着财政部、国家税务总局4月30日发布《关于将电信业纳入营业税改征增值税试点的通知》,电信业营改增终于"落地",从2014年6月1日起,将电信业纳入"营改增"试点。这意味着,营业税制中原有的9个税目届时减少到7个。税率也有相应调整,其中基础电信服务税率为11%,增值电信服务税率为6%。本文运用SWOT分析的方法对电信业"营改增"的优势、劣势、机会和威胁进行分析,并提出相应建议。     

Evaluation of a Pre-Service Training Module in Microcomputer Applications for the Teaching of Reading

No abstract available for this article.     

电信普遍服务的源起及其在发达国家的发展

电信普遍服务源自美国,经过近百年的发展,业已成为世界大多数国家的共识。法国、英国、澳大利亚、日本等国的电信普遍服务在世界各国中发展得相当迅速。     

The climate visualizer: Sense-making through scientific visualization

Journal of Science Education and Technology - This paper describes the design of a learning environment, called the Climate Visualizer, intended to facilitate scientific sense-making in high school...     

Linking for learning: Computer-and-communications network support for nationwide innovation in education

Just as the grand challenges in scientific research require computer-communications network support for collaboration among geographically disparate institutions, disciplines, and individuals, so the grand challenges of educational reform require new kinds of collaborations across previously separate institutional boundaries and among individuals whose work was previously isolated from one another. The national and international computer communications infrastructure is being engineered and deployed at the same time as new structures are sought for education. Know-how about productive educational applications of computer communications has been gained from previous and current projects. Productive projects in educational telecomputing will focus on the grand challenges of education, and at the same time help to build appropriate telecommunications infrastructure for education. A reasonable goal is to have in operation, by the mid-1990s, the intellectual, technological, educational, and organizational foundation necessary for productive and efficient use of computer-communications networks for education.Opinions expressed in this paper are those of the author and do not necessarily reflect official policy of the National Science Foundation.     

基于属性约减的助推技术及其应用

助推技术是机器学习和数据挖掘领域一种重要的方法,它能够大大提升预测精度,但往往容易造成训练过度,即训练精度过高导致模型外推性变差。本文提出了使用神经元网络技术进行属性约减后进行助推决策树建模的方法,较大程度上避免了助推的过度训练问题。在湖南某市电信数据库中进行了客户流失分析建模实验,结果表明该方法在模型的精度、结果的可理解性以及模型外推精度方面均优于同类算法。     

Estimating network effects in China''s mobile telecommunications

A model is proposed along with empirical investigation to prove the existence of network effects in China's mobile telecommunications market. Futhernore, network effects on China's mobile telecommunications are estimated with a dynamic model. The structural parameters are identified from regression coefficients and the results are analyzed and compared with another literature. Data and estimation issues are also discussed. Conclusions are drawn that network effects are significant in China's mobile telecommunications market, and that ignoring network effects leads to bad policy making.