Reducing the prior-knowledge achievement gap by using technology-assisted guided learning in an undergraduate chemistry course     

Anna J. Lou  Susanne M. Jaeggi 《科学教学研究杂志》2020,57(3):368-392

There have been many practical obstacles for teachers to implement evidence-based educational technology, especially in STEM classrooms. By implementing learning principles related to Cognitive Load Theory, we developed an innovative Technology-Assisted Guided Learning (TAGL) approach and its web-based instructional tool, combining expertise from educational research and best teaching practices to enhance guided student-centered learning in chemistry. A total of 185 community college students were randomly assigned to learn stoichiometry through either TAGL or one of two active control interventions, traditional direct instruction and Khan Academy, a widely used web learning platform. We found that the TAGL group significantly outperformed both active control groups immediately after instruction, and furthermore, despite the fact that all groups received additional instruction in stoichiometry, the beneficial effects of TAGL compared to the control groups were maintained a month later. Notably, TAGL was able to eliminate the achievement gap between students with low prior knowledge and students with high prior knowledge. Furthermore, prior-knowledge activation was found to be especially beneficial for students with low prior knowledge. Our work contributes to existing research in learning theories and provides new insight toward the development of more effective and adaptive instructional designs. By translating research into practice, this study demonstrates the great potential of using innovative computer-based technology to improve student learning for all.  相似文献   

人文学者学术研究的数字能力现状分析     

朱思苑  卢章平 《图书情报工作》2019,63(17):84-92

[目的/意义]以人文学者为研究对象，划分其数字能力域类别，构建人文学者用于学术研究的数字能力框架，用以探究当前我国人文学者的数字能力现状和存在问题。[方法/过程]按文史哲、语言、法律；艺术、音乐、传媒；图书馆学、档案学、博物馆学；人类学、政治学、社会学4大学科分类对国内203名相关人文学者开展问卷调查，并对问卷结果进行因子分析、T检验、单因素ANOVA分析。[结果/结论]为提高人文学者的数字能力，从人文学者开展学术研究的一般过程：前期基本信息能力、中期数字技术运用能力、末期交流共享能力三方面提出建议，为今后人文学者如何更好地开展学术活动、图书馆相应学科服务能力的升级、数字人文平台推动人文研究的发展等方面提供一定参考。  相似文献   

‘This could be our reality in the next five to ten years’: a blogpost platform as an expectation generation device on the future of insurance markets     

Gert Meyers  Ine Van Hoyweghen 《Journal of Cultural Economy》2018,11(2):125-140

William James (1919) characterises hypotheses as either live or dead. A hypothesis is live when it is taken into account as a ‘real possibility’. We follow James’ suggestion to not attribute intrinsic properties to hypotheses, but rather investigate how they came into being and look at the effects they generate. Expectations of digital technologies are a topic of vivid debate in the insurance industry. Before these expectations can become ‘live’, they have, in the first place, to be generated by market devices. We investigate how the reinsurance blogpost platform Open Minds functions as an ‘expectation generation device’ on the future of insurance markets. Combining Beckert’s work on the role of fictional expectations with the pragmatist turn in sociology of markets, we propose to study ‘expectation generation devices’, provoking expectations on economic markets. In our empirical analysis, we demonstrate the explicit fictional character of the Open Minds contributions, and analyse how a contained space of openness is generated to provoke expectations. We demonstrate how Open Minds can become live through circulation to other expectation generation sites in the insurance industry and beyond. We conclude by reflecting on the importance of expectation generation devices as a particular type of market devices.  相似文献   

The Impact of More,Better, Faster,Cheaper: How the PCC Influenced Everything That Followed     

Carol G. Hixson 《Cataloging & classification quarterly》2020,58(3-4):294-302

Abstract

The beginnings and the early years of the Program for Cooperative Cataloging (PCC) had a profound impact on the approach taken to cataloging in North America and around the world. The commitment to standards, cooperation, and expanded access also had an impact that went far beyond cataloging operations. One library dean traces the evolution of her vision and contemplates how the PCC’s principles have shaped her entire career and have affected the libraries in which she has worked.  相似文献   

电子书用户使用意愿影响模型构建与实证     

杨方铭  张志强 《图书情报工作》2020,64(9):85-94

[目的/意义] 探究用户使用电子书意愿的影响因素，以有助于电子书产业走出缓慢的发展困境。[方法/过程] 以UTAUT2、使用满足理论为基础，从需求满足和外部情景因素两个层面构建影响因素模型，并将需求满足细化为内容需求、社交互动需求和休闲娱乐需求3个测量变量。采用问卷调查方法收集有效样本1 013份，使用AMOS21软件对模型进行验证。[结果/结论] 研究发现，需求满足、阅读习惯、价格价值、社会影响对使用意愿有正向影响作用，而激励措施对使用意愿有负向影响作用，努力期望对使用意愿的影响不显著，并依据研究结果提出促进电子书产业发展的建议。  相似文献   

澳大利亚数字人文项目透视——兼论对我国数字人文项目的启示     

徐彤阳  杨明睿 《图书情报工作》2020,64(22):145-152

[目的/意义] 分析澳大利亚数字人文项目特征，总结澳大利亚数字人文项目概况，获取对我国数字人文的建设性意见。[方法/过程] 运用网络调查法和访谈法对澳大利亚数字人文项目开展情况进行分析，总结项目概况并梳理其发展阶段和各阶段代表性项目，按照研究方法和方向的不同进行分类，同时根据项目成果和影响力建立分析评价体系来获取有价值的特征，并据此讨论为丰富我国数字人文建设的理论和实践提供借鉴的诸多意见。[结果/结论] 澳大利亚数字人文项目整体阶段特征明显、意义显著，本文总结出其项目的社会服务、图书馆深度参与、创新合作共享等特征，针对我国数字人文提出加大投入、释放图书馆潜力和形成特色的主要意见。  相似文献   

美国大学图书馆馆藏资源组织进展     

蔡颖  蔡迎春 《图书馆论坛》2020,(6):166-173

文章对美国大学图书馆在信息资源组织与利用方面的创新与实践进行梳理总结,以期为国内图书馆的资源建设提供借鉴。选取美国顶尖的11所大学图书馆作为考察对象,重点介绍它们在馆藏特色文献数据化、资源多样化收集与元数据整合、数字资源全生命周期管理方面的特色和进展。图书馆在资源服务方面所扮演的角色在不断演变,美国大学图书馆正借助先进的信息生产、存储和传递技术,向着实现信息资源共建、共知和共享的目标迈进。国内图书馆需要关注新兴技术,加强特藏资源开发,促进纸质与数字资源融合,优化数字资源业务流程。  相似文献   

应用型人才培养模式下的“开放式”体育教学改革与研究——以莆田学院为例     

彭毅  陈小芳 《当代体育科技》2020,(10):11-14

本文采用文献资料、个案研究等方法,对莆田学院应用型人才培养模式下的“开放式”体育教学改革进行调查研究,旨在剖析其改革的具体方法,并提出以下建议:(1)宏观方面,建议政府出台支持政策,积极引导校企合作,建议企业依据自身需要,将相关需求的市场信息反馈给学校,实现地方社会事业、学校和企业的“三方”共赢。(2)微观方面,学校积极提升自身的“软”与“硬”实力,结合市场需求,充分利用校企合作的市场机遇,调整人才培养模式,充分运用现代信息技术,实现体育教学理念、教学内容要和方法、教学时间和空间、教学评价体系上的开放,培养满足市场需求的专业技术人才。  相似文献   

湖南师大体育学院学生篮球裁判现状与培养模式分析     

谢振帆 《当代体育科技》2020,(10):155-156

体育竞赛活动的顺利开展需要懂得竞赛规则和具有裁判能力的组织者。湖南师范大学体育学院作为湖南省各类体育人才培养的摇篮,多年来为社会输送了大量合格的体育裁判员,其中数量最多,社会需求量最大的是篮球裁判员。本文基于实地调查,对存在的问题进行了总结与改进,旨在为推进湖南省篮球裁判队伍业务素质整体的提高与建设提出合理化建议。  相似文献   

高校游泳教学的内容方法及其模式的研究     

时郁文 《当代体育科技》2020,(10):158-159

高校游泳课程的开设在教学目的上从提高学生的游泳技能转变为了提高学生对于游泳健身的认识的掌握,提高学生耐力与耐心。在高校游泳教学中,为能够提高学生的学习兴趣,应积极创新教学内容与方法,形成具有新意的教学模式,这对于保持学生对游泳课程的学习兴趣是十分重要的。当前在高校游泳课程的教学中,还存在着教学模式较为单一的问题,这就需要从教学内容、方法与模式中进行改革。  相似文献