基于网络的大学生协作学习模式的研究

协作学习是一种为了促进高效学习、培养学生团队协作能力而开展的教学活动。与传统的协作学习相比,基于网络的协作学习具有交互性、开放性、个性化、资源共享性等特点。本文从协作学习和网络学习的概念及特点出发,分析和总结了在网络环境下培养学生协作学习能力的实用和借鉴价值,提出了基于网络的协作学习模式的思考与展望。     

浅论基于网络的协作学习

基于网络的协作学习是指利用网络技术来辅助和支持协作学习的一种学习模式。本文对基于网络的协作学习概念、基本要素、特点和模式等作了一些有益的探讨。     

基于网络的大学生协作学习模式的研究

协作学习是一种为了促进高效学习、培养学生团队协作能力而开展的教学活动.与传统的协作学习相比,基于网络的协作学习具有交互性、开放性、个性化、资源共享性等特点.本文从协作学习和网络学习的概念及特点出发.分析和总结了在网络环境下培养学生协作学习能力的实用和借鉴价值,提出了基于网络的协作学习模式的思考与展望.     

基于网络的英语协作学习探讨

网络多媒体环境下的英语协作学习,是随着教育思想和教学技术的发展而产生的一种新型教学模式。分析了基于网络的英语协作学习的特点,探讨了在这种模式下进行教学的优势和存在的问题,设计了基于网络的英语协作学习活动,并对这种模式进行了总结并提出了希望。     

基于工作流技术的Web协作学习环境的构建研究北大核心CSSCI

Web协作学习可以消除网络学习的孤独感,发挥群体能动性,提高学习效率。然而,基于交流论坛的协作学习,由于参与者学习行为的独立随意性,不适合协作经验不足和自主学习能力较弱的学习者。而将面对面协作学习远程化的协作学习,由于网络环境下师生数量悬殊过大,不具备推广性和普适性。在缺乏教师实时监督指导的现实前提下,基于工作流技术,笔者提出构建一种适合网络学习者自行实施协作学习的Web协作学习环境。该环境提供学习流以引导学习活动的有序开展,并将协作教学管理经验作为协作学习策略进行存储,监控可能出现的协作困难并提供解决方案。学习者通过遵循Web协作学习环境定义的各项规则,激发学习能动性,提高Web协作学习的有效性。     

Groove支持下的网络协作学习探究

Groove作为一种协作工具,在网络协作学习中起到了举足轻重的作用。本文在分析Groove功能和特点的基础上,结合协作学习和网络协作学习的概念与要素,阐述了Groove支持下网络协作学习的基础理论,进而说明在Groove支持下,网络协作学习是如何开展的。     

基于Groove的网络协作学习活动设计与实施

Groove作为一种协作工具,在网络协作学习中起到了举足轻重的作用。文章在分析Groove功能和特点的基础上,结合协作学习和网络协作学习的概念与要素,提出Groove支持下网络协作学习活动设计方式及设计出学习活动案例,以有效指导基于Groove的网络协作学习活动的开展。     

基于虚拟教室的协作学习设计研究

虚拟教室作为一种网络协作学习环境,促进了学习者之间的协作,为学习者提供了更加广阔自由的协作学习空间。本文阐述了虚拟教室的特点和发展,并在分析虚拟教室环境下开展协作学习优势的基础上,结合协作学习理念,提出基于虚拟教室的协作学习活动的设计,以期有效指导基于虚拟教室协作学习活动的开展。     

基于工作流技术的Web协作学习环境的构建研究

Web协作学习可以消除网络学习的孤独感,发挥群体能动性,提高学习效率.然而,基于交流论坛的协作学习,由于参与者学习行为的独立随意性,不适合协作经验不足和自主学习能力较弱的学习者.而将面对面协作学习远程化的协作学习,由于网络环境下师生数量悬殊过大,不具备推广性和普适性.在缺乏教师实时监督指导的现实前提下,基于工作流技术,笔者提出构建一种适合网络学习者自行实施协作学习的Web协作学习环境.该环境提供学习流以引导学习活动的有序开展,并将协作教学管理经验作为协作学习策略进行存储,监控可能出现的协作困难并提供解决方案.学习者通过遵循Web协作学习环境定义的各项规则,激发学习能动性,提高Web协作学习的有效性.     

基于虚拟教室的协作学习设计研究

虚拟教室作为一种网络协作学习环境,促进了学习者之间的协作,为学习者提供了更加广阔自由的协作学习空间。本文阐述了虚拟教室的特点和发展,并在分析虚拟教室环境下开展协作学习优势的基础上,结合协作学习理念,提出基于虚拟教室的协作学习活动的设计,以期有效指导基于虚拟教室协作学习活动的开展。     

对比语言学与二语习得关联性研究

本文以中介语对比分析理论、概念迁移理论、生成学习理论为依据,从对比语言学和二语习得的发展概况出发,以二语词汇习得等为例,论证对比语言学和二语习得之间存在:概念意义上,两者具有相交性;发展历程上,两者具有相似性;研究目的上,两者具有一致性。     

Teaching Gene Technology in an Outreach Lab: Students’ Assigned Cognitive Load Clusters and the Clusters’ Relationships to Learner Characteristics, Laboratory Variables, and Cognitive Achievement

This study classified students into different cognitive load (CL) groups by means of cluster analysis based on their experienced CL in a gene technology outreach lab which has instructionally been designed with regard to CL theory. The relationships of the identified student CL clusters to learner characteristics, laboratory variables, and cognitive achievement were examined using a pre-post-follow-up design. Participants of our day-long module Genetic Fingerprinting were 409 twelfth-graders. During the module instructional phases (pre-lab, theoretical, experimental, and interpretation phases), we measured the students’ mental effort (ME) as an index of CL. By clustering the students’ module-phase-specific ME pattern, we found three student CL clusters which were independent of the module instructional phases, labeled as low-level, average-level, and high-level loaded clusters. Additionally, we found two student CL clusters that were each particular to a specific module phase. Their members reported especially high ME invested in one phase each: within the pre-lab phase and within the interpretation phase. Differentiating the clusters, we identified uncertainty tolerance, prior experience in experimentation, epistemic interest, and prior knowledge as relevant learner characteristics. We found relationships to cognitive achievement, but no relationships to the examined laboratory variables. Our results underscore the importance of pre-lab and interpretation phases in hands-on teaching in science education and the need for teachers to pay attention to these phases, both inside and outside of outreach laboratory learning settings.     

The Research of Cooperative Learning Effects on College Students＇ Learning Anxiety

Since Krashen put forward the Affective Filter Hypothesis, more and more concern has been paid to the anxiety problem in Second and foreign language teaching and learning. Meanwhile, CL （cooperative learning） has gained much attention in recent years, both at home and abroad. Most researches （Oxford ＆ Ehrman, 1993; Kagan, 1994; Slavin, 1995） on CL indicated that CL is a classroom procedure which can lower anxiety and improve learning outcomes. Although the researches abroad have suggested that CL has a positive impact on reducing foreign language learning anxiety, few empirical researches on CL have been conducted in China. Moreover, according to the author＇s observation, anxiety is most obvious in oral English activities. Therefore, this thesis attempts to investigate some Chinese non-English freshmen＇s foreign language learning anxiety. Two classes are involved in the study： one as the experimental class instructed with CL method, the other as the control class taught with the traditional teaching method. By using a classical instrument, the FLCAS （foreign language classroom anxiety scale）, this study examined the subjects＇ foreign language learning anxiety. According to the analysis and comparison of the first and second FLCAS, the author finds CL has a significant effect on reducing students＇ foreign language learning anxiety.     

流动注射化学发光分析

流动注射化学发光分析法灵敏度高，而且快速，重现性好，自动化程度高，现已受到人们的普遍关注，章简要介绍该方法的实验装置，评述了流动注射化学发光分析法近年来的发展概况，阐述了该方法在应用研究中的作用，并展望了其发展前景。     

试论认知语言学和系统功能语言学的互补性

认知语言学和系统功能语言学为当前两大流派,和转换生成语言学一起主导着当前国内的语言学研究,但一直以来,这两个本来可以相互借鉴和相互补充的两个学派竟然互不往来。本文试图对两个学派的理论和应用做一个理顺并对照它们的异同探讨两者的互补性。     

异形柱结构体系抗震性能初探

吸取震害教训,力求抗震安全。分析了异形柱框架结构体系,CL结构体系（异性柱和复合墙板）的抗震性能,发现二者的抗震性能均较差,不适用于设防烈度为8度和小高层房屋。     

The impact of cooperative learning on self-directed learning abilities in the computer applications technology class

ABSTRACT

This article reports on an explorative study into the relationship between the implementation of cooperative learning strategies and students’ self-directedness in learning. Participants in this study were first-year Computer Applications Technology student teachers. Students completed a self-directed learning questionnaire at the beginning of the module and again after completion of the module. We used cooperative learning strategies during contact sessions over 12 weeks. After completion of the module, interviews were also conducted with randomly selected students. We concluded that the cooperative learning experiences in the Computer Applications Technology class appear to have an effect on students’ perceived readiness for self-directed learning only in cases where students do not have perceived high self-directed learning skills.     

合作学习的几个负面效应及应对

合作学习目前存在某些负面效应:其一,合作学习的运行机制与现行评估体系难以契合,应尝试变革现行评估体系;其二,合作群体的发展趋向就低不就高,呈低水准意志统一状态,应有限地突破"异质分组";其三,权威意志全面替代集体意志,应采用"强制分工"作为过渡手段;其四,独立解决问题能力下降,应设置多层次的复杂性学习任务。     

反相流动注射化学发光法测定盐酸林可霉素

基于盐酸林可霉素对Luminol-KIO4体系化学发光有强烈的增敏作用,结合反向流动注射技术,建立了测定盐酸林可霉素的流动注射化学发光的方法;在优化的实验条件下,测定盐酸林可霉素的线性范围为1.0×10-9～7.0×10-5mol.L-1,检出限为3.4×10-9mol.L-1,对对于浓度为1.0×10-7mol.L-1的盐酸林可霉素连续测定11次,测定值的相对标准偏差为0.8%,以片剂为基体,用标准加入法检验方法的回收率,测得结果在99.6%～101.0%之间.     

Hilbert K-模上的基向量

主要引入了Hilbert K-模上的Hilbert基向量,Riesz基向量,以及标准正交基向量等一系列概念,运用泛函分析和算子代数的理论知识研究了这几种向量之间的关系,得到了一些有用的结论.