基于Internet/Intranet的教学模式探索研究--《计算机辅助设计 CAD》课程改革实践

本文尝试性地提出一种基于Internet/Intranet环境下的教学模式,开展了以"学生为中心"的"自主型"学习的网上教学,并将其应用在<计算机辅助设计CAD>这门课程中,取得了较好的教学效果.     

关于计算机辅助数学教学的调查与分析

随着科技的发展，计算机辅助教学越来越受到学校的重视，利用计算机辅助数学教学能在一定程度上吸引学生的注意力，提高学生学习数学的兴趣，促进学生加深对数学知识的理解。当前教师利用计算机辅助教学 存在一些不足之处，在教学中， 需要注意以下几点：（1）设计数学课件要力求简洁、清晰，能促进理解；（2）使用课件要注意控制节奏，重视学生的思考与参与；（3）提高课件的利用率。     

晶体成核和生长的微观模型

通过理论上分析在碰撞中由两个溶质颗粒(或不等粒子)形成的结合体(或二聚体)携带的多余水的扩散,我们得到了三个重要的结论:1)均相成核的开始是一个二级过程(反应);2)晶体生长的稳定阶段是一个一级过程;3)晶体成核与生长的自由能障的表达式相同,由此得到了结晶的等温速度方程。     

电工实验多媒体教学软件系统分析与设计

介绍了电工多媒体教学软件的设计过程，以及运用多媒体著作工具Authwere及其他相关工具进行软件系统开发的方法。对多媒体教学软件系统的设计思想，整体组成，系统特点，运行状况和应用前景进行了探讨。     

建构意义下的计算机辅助化学教学实践

从提供丰富的背景资料、设计适宜的教学过程和落实学生的思维活动三个方面进行了建构意义下的计算机辅助化学教学的实践与探索。     

A collegial quality development process for identifying and addressing barriers to improving teaching

ABSTRACT

Challenges to ensuring teaching quality in higher education give ongoing impetus to invest in teaching quality improvement. While a significant body of literature has recognised challenges faced by academics seeking to improve teaching practices, processes for developing constructive responses to identified barriers have attracted less attention. A synthesis of literature on barriers to improvement of teaching is presented and used as a framework to assist an identification of barriers. This article reports on a national Australian trial of a collegial quality development process aimed at supporting academics to both identify and surmount barriers to improving teaching quality. Evidence of the nature and extent of barriers to improving teaching was collated from data provided by 28 academics across five Australian universities. Adopting a thematic analysis approach, a broad range of perceived barriers were identified, largely consistent with barrier categories defined in the extant literature internationally. Findings reveal that, with the support of peers, participants were able to implement effective solutions to their identified barriers to improving teaching quality. This article provides a synthesis of current barriers to improve teaching and offers a collegial quality development process as a strategy to overcome these barriers.     

A usability study of users' perceptions toward a multimedia computer‐assisted learning tool for neuroanatomy

This usability study evaluated users' perceptions of a multimedia prototype for a new e‐learning tool: Anatomy of the Central Nervous System: A Multimedia Course. Usability testing is a collection of formative evaluation methods that inform the developmental design of e‐learning tools to maximize user acceptance, satisfaction, and adoption. Sixty‐two study participants piloted the prototype and completed a usability questionnaire designed to measure two usability properties: program need and program applicability. Statistical analyses were used to test the hypothesis that the multimedia prototype was well designed and highly usable, it was perceived as: (1) highly needed across a spectrum of educational contexts, (2) highly applicable in supporting the pedagogical processes of teaching and learning neuroanatomy, and (3) was highly usable by all types of users. Three independent variables represented user differences: level of expertise (faculty vs. student), age, and gender. Analysis of the results supports the research hypotheses that the prototype was designed well for different types of users in various educational contexts and for supporting the pedagogy of neuroanatomy. In addition, the results suggest that the multimedia program will be most useful as a neuroanatomy review tool for health‐professions students preparing for licensing or board exams. This study demonstrates the importance of integrating quality properties of usability with principles of human learning during the instructional design process for multimedia products. Anat Sci Ed 2008. © 2008 American Association of Anatomists.     

Medical student retention of embryonic development: Impact of the dimensions added by multimedia tutorials

The purpose of this project was to develop Web‐based learning modules that combine (1) animated 3D graphics; (2) 3D models that a student can manipulate independently; (3) passage of time in embryonic development; and (4) animated 2D graphics, including 2D cross‐sections that represent different “slices” of the embryo, and animate in parallel. These elements were presented in two tutorials, one depicting embryonic folding and the other showing development of the nervous system after neural tube formation. The goal was to enhance the traditional teaching format—lecture combined with printed diagrams, text, and existing computer animations—with customized, guided, Web‐based learning modules that surpassed existing resources. To assess module effectiveness, we compared quiz performance of control groups who attended lecture and did not use a supporting module, with study groups who used a module in addition to attending lecture. We also assessed our students' long‐term retention of the material, comparing classes who had used the module with students from a previous year that had not seen the module. Our data analysis suggests that students who used a module performed better than those given only traditional resources if they used the module after they were already somewhat familiar with the material. The findings suggest that our modules—and possibly computer‐assisted‐instruction modules in general—are more useful if used toward the later stages of learning, rather than as an initial resource. Furthermore, our data suggest that the animation aids in long‐term retention. Both medical students at the University of Cincinnati and medical faculty from across the country commented favorably on their experiences with the embryonic development modules. Anat Sci Ed 1:252–257, 2008. © 2008 American Association of Anatomists.     

A perspective of microplasma oxidation （MPO） and vapor deposition coatings in surface engineering of aluminum alloys

IntroductionInrecentyears,improvingthewearlifeofAl-basedalloyscomponentsinheavysurfacecontactconditionsbytheapplicationofmicroplasmaoxidation(MPO)coatingshasprovensuccessfulundertechnicalandeconomicconsideration.MPOtechnologyhasrecentlybeentakenasarapid,novelandeffectivemeanstoprovidethickceramiccoatingswithexcellenthardnessandload-bearingcapacityforlightalloymaterials,particularlyaluminumalloys[1].TheMPO,alsocalledplasmaelectrolyticoxidation(PEO),isanadvancedtechnologyforroutineanodizing…     

现代教学理论对多媒体辅助语言教学的影响

对多媒体辅助语言教学产生较大影响的理论主要有三种：结构主义理论、认知和构建主义理论及社会认知理论。分别分析了这三种理论对多媒体辅助语言教学实践所产生的影响及其与多媒体辅助语言教学实践之间的互动关系。