Integrating cognitive load theory and concepts of human–computer interaction

With the continually increasing complexity of e-learning environments, there is a need for integrating concepts of cognitive load theory (CLT) with concepts of human–computer interaction (HCI). Basic concepts of both fields were reviewed and contrasted. A literature review was conducted within the literature database “The Guide to Computing Literature,” searching for “cognitive load theory” and “Sweller.” Sixty-five publications contained “cognitive load” in their titles or abstracts. Each publication was checked to see whether it contained the concepts of intrinsic, extraneous, or germane cognitive load. The review showed that CLT concepts have been adopted in HCI. However, the concept of germane cognitive load has attracted less attention up to the present time. Two conceptual models are proposed. The first model divides extraneous cognitive load into load induced by the instructional design and load caused by software usage. The model clarifies the focus of traditional usability principles and of existing instructional design principles derived from CLT. The second model fits CLT concepts into the basic components of user-centered design. The concept of germane cognitive load illustrates that an increase of cognitive load can be desirable when designing e-learning environments. Areas for future interdisciplinary research are sketched.     

Boundaries and roles: Positioning and social location in the Virtual Math Teams (VMT) online community

As research in Computer-Supported Collaborative Learning (CSCL) expands its understanding of joint knowledge building, new perspectives on how social reality is constructed become necessary. Our research concentrates on the longitudinal or diachronic trajectories of Virtual Math Teams (VMT) at The Math Forum, an online community supporting mathematical inquiry. We investigate how these virtual teams constitute themselves while engaged in building collaborative knowledge. We describe as well, through the lens of positioning theory, the interactional activities that allow participants to situate themselves, others, and their collective knowledge resources over time. Our analysis suggests that positioning work is central to constructing a sustained problem space and illustrates how the configurations of positions and resources that co-participants put forward through interaction might change across a team’s trajectory. These changes constitute and are sensitive to the participants’ evolving reasoning routines and other forms of joint participation uniquely related knowledge building. In addition, we show that the VMT activity system affords participants a level of disciplinary engagement which is partly illustrated by active engagement in positioning work. Finally, we suggest that an interactional approach to roles and participation provides a fruitful framework for researchers, designers, and practitioners interested in understanding and creating engaging CSCL interactions.     

无线传感器网络在电能信息采集中的应用

在介绍电力线载波、RS-485、无线传感网络系统特点的基础上,提出了基于无线传感器网络技术的远程无线用电信息集抄的实现方案。详细讨论了硬件设计、软件设计和网络节点的功耗问题。方案具有高可靠、低成本、易维护、覆盖面积大等特点。系统可以实现自动组网、数据传输,达到无需现场干预实现电能信息管理系统跟电能表之间的信息交互。     

论基于多元智能理论的计算机游戏化教学模式

儿童世界是游戏的世界,游戏是正在成长中的儿童最大的心理需求,在儿童心理发展的各个方面起着重要的作用。那么如何挖掘计算机游戏中的教育因素,使计算机教育游戏能够在开发儿童多元智能方面充分发挥其作用呢？该文提出了开发儿童多元智能的计算机游戏化教学的四种教学模式：导学模式、诊断模式、探究模式、练习模式。     

远程电表集抄系统软件设计与实现

通过分析当前电业局的需求,设计并实现了一种开放式多线程的远程电表集抄系统,介绍系统的总体设计及各模块的功能,详细描述了抄录数据功能和报表分析生成模块的具体实现。     

面向课程组资源的辅助教学网站的研究与设计

笔者在调研当前高校信息化教学现状时发现信息化教学中存在着诸多问题,其中在校大学生的针对性课程资源建设成为发展信息化教学的瓶颈,严重阻碍教学信息化。由此,笔者大胆提出研究和建设面向课程组资源的辅助教学系统,以解决此瓶颈并深化高校信息化教学。     

人工智能课程设计问题的探讨

人工智能课程设计是人工智能课程中重要的综合性实践环节,对提高学生理解和掌握人工智能基本概念和算法的能力、对培养学生从智能设计的角度考虑和解决问题的素养都具有重要的作用。结合多年教学实践,从课程设计的重要性、设计的选题、指导方式以及设计报告撰写等方面进行探讨和总结。     

电子类专业计算机网络课程实践教学体系

针对电子类专业人才对网络技术的新需求,以该专业的网络应用为背景,从培养具有创新精神的电子类应用型人才角度出发,提出一个电子类专业计算机网络课程的实践教学体系,以提高教学效果和学生的综合应用能力。     

基于职业岗位能力的教学案例设计过程研究

案例教学作为一种教学方法,早已广泛应用于医学、工商管理、计算机等各个专业领域中。尤其在计算机领域,案例的选择是否恰当尤为重要,是关系到案例教学是否能取得预期成效的关键因素。本文就审计案例教学中教学案例的设计过程进行了探讨。提出依据变量互补性标准来选择和设计教学案例,引导学生体验实验的过程,完善自身的认知结构,给学生足够的时间,真正实现自主学习。     

面向自动抄表系统的智能消息语言

针对传统自动抄表系统存在的多种计量设备相互通信困难的问题,提出了一种面向自动化抄表系统的智能消息语言(SML).分别阐述了SML的基本概念、结构及其在网络结构中的定位,分析了SML语言标准中的消息簇组成格式、封装和编码方式等.最后,结合电力抄表系统的应用实例,给出了SML语言在电力自动抄表系统中的各种数据传输格式.通过...