Embellishing Problem-Solving Examples with Deep Structure Information Facilitates Transfer     

Hee Seung Lee  Shawn Betts  John R. Anderson 《Journal of Experimental Education》2017,85(2):309-333

Appreciation of problem structure is critical to successful learning. Two experiments investigated effective ways of communicating problem structure in a computer-based learning environment and tested whether verbal instruction is necessary to specify solution steps, when deep structure is already embellished by instructional examples. Participants learned to solve algebra-like problems and then solved transfer problems that required adjustment of learned procedures. Experiment 1 demonstrated that verbal instruction helped learning by reducing learners' floundering, but its positive effect disappeared in the transfer. More importantly, students transferred better when they studied with examples that emphasized problem structure rather than solution procedure. Experiment 2 showed that verbal instruction was not necessarily more effective than nonverbal scaffolding to convey problem structure. Final understanding was determined by transparency of problem structure regardless of presence of verbal instruction. However, verbal instruction had a positive impact on learners by having them persist through the task, and optimal instructional choices were likely to differ depending on populations of learners.  相似文献   

The role of the English learner facilitator in developing teacher capacity for the instruction of English learners     

Felice Atesoglu Russell 《Teachers and Teaching》2017,23(3):312-331

As a field, we have a limited understanding and a dearth of empirical research concerning the role of high school instructional coaches focused on English learners (ELs). This paper examines one EL facilitator’s work as an instructional coach and resource for supporting mainstream content teachers as they learn to meet the needs of adolescent ELs in one high school. This analysis is grounded within an examination of the influence of school structure and organization on the EL facilitator’s work and her role as a resource. Drawing on sociocultural learning theory, as well as literature on teacher leadership and instructional coaching, case study data from a year-long qualitative research project are analyzed. Implications for research, policy, and practice are discussed.  相似文献   

Guiding music students during workshop-based on-the-job learning     

Esa Virkkula  Jagat Bahadur Kunwar 《Journal of Vocational Education & Training》2017,69(2):266-281

This article explains the realisation and impact of tutoring on learning through a new kind of on-the-job learning method in workshops led by professional musicians. The research is a qualitative case study involving 62 upper secondary Finnish vocational music students who participated in 11 workshops. The research data consist of (a) workshop plans and personal learning goals written by the students before the workshops and (b) reflective essays about experiences after the workshops. The data were analysed using theory-oriented content analyses. In the workshop, the guidance-oriented interaction promoting learning starts at the beginning of the workshop with cooperative planning. The interaction between the students and the professional musician influenced the nature of the guidance – the professional musician was more like a colleague rather than a teacher. The students expressed that they had been able to influence the workshop goals in different phases and, thus, their professional competence had increased significantly. In vocational institutes, it is important to observe different ways of realising on-the-job learning and to develop new models of action, like the workshop method, to promote the development of students’ skills and competence.  相似文献   

Preparing a Data Scientist: A Pedagogic Experience in Designing a Big Data Analytics Course          下载免费PDF全文

Daniel Adomako Asamoah  Ramesh Sharda  Amir Hassan Zadeh  Pankush Kalgotra 《Decision Sciences Journal of Innovative Education》2017,15(2):161-190

In this article, we present an experiential perspective on how a big data analytics course was designed and delivered to students at a major Midwestern university. In reference to the MSIS 2006 Model Curriculum, we designed this course as a level 2 course, with prerequisites in databases, computer programming, statistics, and data mining. Students in the class were mostly seniors or at the graduate level, and had a strong technical and quantitative background. We include details of concepts covered in the course, as well as summaries of four major sample course assignments used. Some of the concepts covered include large‐scale data collection and management using the Hadoop ecosystem, stream mining, visual analytics, and social network analytics. Besides Hadoop, the course also introduced various IBM and Teradata big data tools. We show how the course modules align with the intended learning goals and course objectives. A post‐course survey indicated that the structure and organization of the course helped students clearly and concisely assimilate the course content.  相似文献   

基于流媒体技术的图书馆VOD视频点播系统的设计   总被引：4，自引：0，他引：4  

黄志鹏 《科技广场》2006,(5):103-104

本文在简要介绍流媒体的概念及其实现技术的基础上,论述了我馆VOD视频点播系统的设计。  相似文献   

基于Web的虚拟设计系统开发与应用     

岳键  马利  潘锦基 《中国科技信息》2007,(19):130-131

本文以虚拟现实技术、虚拟设计以及网络应用技术等理论为基础,深入研究了基于Web虚拟设计系统的实现方法。以虚拟现实技术为平台,整合多种网络技术,用软件实现虚拟现实的方法,构建了一个以B/S为体系结构的虚拟设计系统实例。  相似文献   

配电线路微机保护软件系统设计     

魏臻珠  蒋建东 《中国科技信息》2006,(21):152-153,160

文中介绍了配电线路微机保护装置软件系统的总体结构及各功能模块的算法流程图。该系统能够完成线路的单相接地短路保护以及相间短路的电流速断保护和反时限过电流保护；并能够实现单相接地时线路故障点和故障类型的自动判断，便于线路的检修维护。该系统的应用将会大大提高广大城乡电网和工业企业配电网的保护水平．  相似文献   

基于VRML和Java的交互式虚拟产品设计     

翁蓉  廖小平 《中国科技信息》2007,(24):129-130

基于虚拟现实建模语言VRML和Java编程技术，将两者结合运用构建一个应用于数字科技馆中的交互式虚拟产品设计系统，使青少年可以通过互联网协同多人进行产品设计。  相似文献   

敦煌北朝龛楣图案演变及其装饰特征     

李敏 《家教指南》2011,(3):51-55,128,129

龛楣图案作为敦煌装饰图案的一个种类,虽然主要存在于北朝和隋代,但它作为一种特定的适合图案其纹样造型的组合非常巧妙和谐,具有极强的艺术性。其纹样内容、图案构成形式和装饰色彩与佛龛的形制、结构乃至洞窟形制的历史演变有着密切的关系,在不同时期呈现出特定的历史时代风貌。通过对敦煌龛楣图案发生、发展的过程进行分析研究,可以认识到龛楣装饰图案的宗教性、建筑性、装饰性以及民族性特征,是宗教性、功能性和艺术性的统一。  相似文献   

Effects of coaching on teacher use of sociocultural instructional practices     

Annela Teemant  Joan Wink 《Teaching and Teacher Education》2011,27(4):683-693

This study evaluates a performance-based instructional coaching model intended to improve teacher pedagogy and classroom organization for educating diverse student populations. Elementary teachers (N = 21) participated in a 30-h workshop and seven individual coaching sessions across an academic year. The coaching model promoted use of the Standards for Effective Pedagogy, five research-based practices known to increase student achievement. Findings demonstrate performance-based instructional coaching led to statistically significant (a) improvements in teacher pedagogy, (b) patterns of teacher growth, and (c) changes in classroom organization. Implications for improving teachers’ ultimate achievement, the coaching protocol, and research are addressed.  相似文献