构建基于建构主义学习理论的大学英语写作课程教学模式

以建构主义学习理论为依据,以计算机/网络技术为支撑,在Stahl(2000a)的"协作知识建构模型"基础上设计了计算机/网络环境下基于建构主义学习理论的英语写作教学模式,试图改善传统英语写作教学模式,改变当前英语写作教学低效的现状,提高学生英语写作能力。该模式以学生为中心,以教师为指导,以计算机/网络学习为主要学习环境,以视频聊天室、BBS、博客、邮箱为教学或学习介质,将成果法与过程法相结合,利用"情境"、"协作"、"会话"等要素,充分发挥学生的主动性、积极性和首创精神。

Network Access Mechanisms and Security Issues under the Cloud Service Architecture

Currently, under the cloud service architecture, the increasing importance of network security and security issues are still emerging. With the rapid development of the network platform, it is connected to the number and size of the trusted computing environment for all kinds of applications that are rapidly expanding, ever-changing network health, network time being emergencies, assault, failure, threat of disaster, its safety, survivability and availability of face serious challenges. Although TNC Working Group made safe and reliable framework from the network access layer, it is not at the level of user access, system access levels and further given the level of situational awareness and effective solutions.

“3+1”外语课程范式下行动研究的元认知内涵

以往的行动研究存在着概念认识模糊和应用研究不足的问题,就其策略研究而言则较少关注元认知因素。当计算机进入课程后,外语课程的构成范式从传统的"2+1"模式(理论、方法 +课程或教材)转变为"3+1"模式(理论、方法、技术+课程或教材),即教学理论、教学方法、信息技术(教育技术)体现于课程或教材之中。鉴于此,本文提出第二语言发展中行动研究的元认知内涵主要包括对语言教学理论的认知、对语言教学方法及教材使用原则的认知和对外语教育技术及基于计算机/网络的当代教学环境的认知。