支架式教学:概念、手段及模式

作为一种教育策略,支架式教学概念源自于维果茨基的辅助学习概念。支架式教学的理论框架基于维果茨基的最近发展区概念,有悖于皮亚杰的强调学习过程的建构性的认知法。与支架式教学概念相近似的一个概念是克拉申的输入假设,即“1＋1”可理解输入概念。搭建支架的性质是动态的,但其主要特征仍可识别。涵盖支架式教学关键性特征的教学模式有交互式、认知学徒式、自生语言精致、自主教学策略发展等教学模式。支架式教学可通过搭脚手架策略,在认知支架、情感支架、策略支架、技术支架等领域促进学习的迁移。在支架式教学过程中,教师通常提供三种支架：媒介支架、任务支架、材料支架。尽管支架式教学可最大化优化学习效果,在其有效使用上还存在着局限。因而,“自然发展”和“教学支架”教学手段应互补。     

Heuristic task analysis on e-learning course development: a formative research study

Utilizing heuristic task analysis (HTA), a method developed for eliciting, analyzing, and representing expertise in complex cognitive tasks, a formative research study was conducted on the task of e-learning course development to further improve the HTA process. Three instructional designers from three different post-secondary institutions in the U.S. were selected for interviews. The interviews focused on three e-learning course development cases (one from each institution), and the participants were asked to articulate their underlying thoughts and principles for designing e-learning courses. Overall, the HTA process worked well in the sense that the study could elicit procedural steps and sub-steps involved in e-learning course development and heuristic knowledge with which the instructional designers performed each step. On the surface, the e-learning course development processes that the instructional designers used looked more alike than different, entailing major steps such as meeting with faculty, developing content, monitoring courses in progress, and debriefing the instructor and students. The underlying principles and knowledge that guided each instructional designer through the processes, however, were unique in that each instructional designer constructed her own heuristics to accommodate the myriad contextual factors that arose in her work setting. The study also discussed the challenge of identifying the simplest yet most representative e-learning course development case with multiple experts and suggestions for further improving the HTA process were also presented.

Genetically modified food for the future: examining university students’ expressions of futures thinking

Futures thinking, or foresight, is increasingly recognised as a key element in science and environmental education. We integrated a futures thinking activity into an undergraduate general science course in Taiwan by using an online thinking and discussion tool that provides scaffolding questions to help students think systematically about future possibilities of the specific topic – genetically modified (GM) food. As a course assignment, the enrolled students were asked to work on and write their responses to this online scaffolding tool over five weeks. The purpose of this study was to examine students’ expressions of futures thinking on GM food as elicited through this assignment. We content analysed the written responses of 99 students who completed the online task. A particular emphasis of analysis was placed on examining students’ thoughts and ideas about ‘preferable’ or ‘desirable’ futures of GM food. Nine themes emerged from the analysis and were found be organised into three categories using factor analysis. These results provided insight into characteristics of students’ futures thinking and underlying perspectives, and can serve as a basis for future-focused curricular and instructional innovations.     

PBL网络教学平台的设计

PBL是建构主义学习理论指导下的一种新的教学模式,具有很好的教学效果,尤其在网络环境下,PBL有着其独特的优点,具有很好的发展前景。该文试图从PBL学习理论入手,讨论网络环境下PBL的优势,分析目前网络教学平台的优缺点,从PBL的过程来讨论PBL网络教学平台的设计。     

THE EFFECT OF SCAFFOLDED VIGNETTE INSTRUCTION ON STUDENT MASTERY OF SUBJECT MATTER

Vignettes have long been used as a tool to model, teach, and research behavior and understanding as well as to stimulate discussion and problem solving in learning situations. The growing body of research on vignettes as an instructional and assessment tool to enhance recognition, recall, and transfer of subject matter knowledge suggests that the effectiveness of vignettes is due in part to its use as a scaffolding tool during instruction. This article summarizes an analysis of the effects of vignette instruction on vignette quiz performance in three sections of a blended graduate educational psychology course. Eight instructional vignettes administered to two sections and eight traditional scaffolding activities completed by the third section represented the only difference in the intervention. Study results suggest that vignette instruction provides efficient near-transfer opportunities and richer scaffolding experiences on student mastery of subject matter than does instruction without vignettes, regardless of whether the scaffolding is conducted in class or online or whether the vignette tasks involve solving a problem or evaluating a solution to a problem in a hypothetical teaching situation.     

Distributed Cognition as a Lens to Understand the Effects of Scaffolds: The Role of Transfer of Responsibility

Problem solving is an important skill in the knowledge economy. Research indicates that the development of problem solving skills works better in the context of instructional approaches centered on real-world problems. But students need scaffolding to be successful in such instruction. In this paper I present a conceptual framework for understanding the effects of scaffolding. First, I discuss the ultimate goal of scaffolding—the transfer of responsibility—and one way that scholars have conceptualized promoting this outcome (fading). Next, I describe an alternative way to conceptualize transfer of responsibility through the lens of distributed cognition and discuss how this lens informs how to promote transfer of responsibility. Then I propose guidelines for the creation of problem solving scaffolds to support transfer of responsibility and discuss them in light of the literature.     

Software Engineering Design Principles Applied to Instructional Design: What can we Learn from our Sister Discipline?

The failure of many instructional design initiatives is often attributed to poor instructional design. Current instructional design models do not provide much insight into design processes for creating e-learning instructional solutions. Given the similarities between the fields of instructional design and software engineering, instructional designers could employ the ideas and techniques employed in software engineering to improve their design solutions. Software engineering development and project management methodologies can be employed to develop effective e-learning solutions. Furthermore, software engineering design principles used to develop high-quality software can be applied to planning and enhancing instruction. Fundamental software design concepts, such as abstraction, modularity, reusability, compatibility, extensibility, scalability, and maintainability are all important factors that can potentially lead to the development of high quality instructional solutions. This paper explores the possibility to integrate software engineering design principles into instructional design for e-learning solutions, which not only augment the generic instructional design approach with the best practices from the field of software engineering, but also make the development process more productive and efficient. Finally, this paper illustrates how all of the software engineering design principles are interrelated and can be realized in practice to enhance the quality of instruction.     

Embellishing Problem-Solving Examples with Deep Structure Information Facilitates Transfer

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.     

Problem-based learning effectiveness on micro-blog and blog for students: a case study

Problem-based learning (PBL) is regarded as an effective learning strategy to enhance cognition not only in traditional learning but also in e-learning. In e-learning settings, blogs and micro-blogs can plausibly provide a platform to conduct PBL. Recently, most studies on blogs and micro-blogs have respectively probed satisfaction and learning effectiveness. However, little effort has been made to explore their effectiveness on learning. Therefore, this study explored an application of a PBL approach on a micro-blog and blog by seventh-grade students taking an information ethics course; in particular, the effect of a micro-blog and blog on student learning with different learning achievement levels. Moreover, results showed that the micro-blog had more effect on PBL for low achievement students compared to the blog. This study suggests that using a micro-blog for PBL is more appropriate for the sake of maximizing learning effectiveness, if generally considering students with different learning achievement levels.     

The role of private speech in the transition from collaborative to independent task performance in young children

This study was designed to examine the following central Vygotskian hypotheses about the functions of preschool children's private speech: (1) that private speech facilitates the transition from collaborative to independent task performance, and (2) that children's use of private speech is conducive to task success. Age-related changes in children's use of private speech were also examined. Forty preschoolers, ranging in age from three to five, completed a selective attention task with scaffolded assistance given from an experimenter when needed. In an effort to overcome several methodological limitations found in previous research, a new microgenetic method of analyzing speech-performance relations based on assigning task items to discrete categories reflecting six possible co-occurrences between private speech (item-relevant speech, item-irrelevant speech, silence) and performance (success, failure) was introduced. Results were that (1) item-relevant speech was used more often during successful than during failed items while the opposite was true for item-irrelevant speech; (2) children were more likely to use private speech on successful items after scaffolding than they were on similar items not following scaffolding; (3) after scaffolding, children were more likely to succeed on the next item if they talked to themselves than if they were silent; and (4) hypothesized curvilinear, age-related patterns in children's item-relevant private speech and silence were found, however, only when analyzing speech during successful items. Implications of this research for preschool teachers and parents are discussed.     

Contemporary Learning Environments: Designing e-Learning for Education in the Professions

Designing e-learning environments for quality professional education is a challenge for education designers, as the continuing practice of simply moving courses online can be surprisingly disabling. We argue that as universities strive to educate for excellence in professional practice, design approaches for the e-learning components must be conceptualized in a broader view of a contemporary learning environment involving integrated virtual and physical dimensions. These are comprehensively considered in an integrated way to facilitate learning experiences providing an emphasis on grounded practice. Our paper considers learning environments in the service of a broader understanding of a professional "practicum." In providing the more flexible, immediate and evolving virtual experiences, e-learning as a feature must take account of a range of education design considerations we model in a framework of elements. These are outlined, and broader issues are illuminated through a comparative case analysis of educational technology developments at Deakin University in the two professional fields of teaching and journalism. The Education Studies Online (ESO) project and the HOTcopy newsroom simulation project exemplify elements of the approach recommended in addressing the challenges of quality professional education. We highlight the generative role of the education designer in adopting an integrative and strategic stance, when creating such environments. Implications for the selection and use of various e-learning resources and corporate e-learning systems become evident as we highlight the dangers of a returning "instructional industrialism" as we risk allowing courses to "move online", rather than moving towards proposed features of contemporary learning environments.     

Problem-based learning in formal and informal learning environments

Problem-based learning (PBL) is a student-centered instructional strategy in which students solve problems and reflect on their experiences. Different domains need different approaches in the design of PBL systems. Therefore, we present one case study in this article: A Java Programming PBL. The application is developed as an additional module for the Learning Management System (LMS). This way the LMS is extended by PBL functionality and the LMS learning resources can be used in PBL.     

An online authoring tool for creating activity-based learning objects

As higher education increasingly relies on e-learning, the need for tools that will allow teachers themselves to develop effective e-learning objects as simply and quickly as possible has also been increasingly recognized. This article discusses the design and development of a novel tool, Enook (Evolutionary note book), for creating activity-based learning objects (LOs). This tool has three general foci: 1) creation of various activity-based objects for experimental learning or learning by doing while simultaneously offering as many learning resources as a real e-book that services as both a textbook and a notebook, dual functions that paperback books can never provide; 2) management of all aspects of live instructor-led classroom training in a network environment, such the Web and or a mobile network; 3) facilitated use of data on students’ progress to monitor their understanding of the material and to provide other meaningful information through learning analytics.     

Integrating e-learning into the Direct-instruction Model to enhance the effectiveness of critical-thinking instruction

The Direct-instruction Model favors the use of teacher explanations and modeling combined with student practice and feedback to teach thinking skills. Using this paradigm, this study incorporates e-learning during an 18-week experimental instruction period that includes 48 preservice teachers. The instructional design in this study emphasizes scaffolding, observational learning, mastery of critical-thinking skills, guided practices, cooperative learning, providing feedback, self-reflection, online discussions, and active participation in an online learning community. This study employs 2 critical-thinking tests, 2 inventories, and 1 open-ended reflection questionnaire; and students’ scores on the pretest and posttest are compared via the Repeated Measure Analysis of Variance. The primary findings are as follows: (a) all participants preferred the instructional design in this study; (b) the experimental instruction effectively improved the preservice teachers’ critical-thinking ability as well as their professional knowledge and personal teaching efficacy concerning critical-thinking instruction; (c) the mechanisms contributing to the effectiveness of the experimental instruction mainly included discussing and sharing, observational learning, self-reflection, guided practice, and the learning community.     

网络课程的交互设计及其实现

本文指出了网络课程交互设计的四个关键要素--学习内容、学习支持、教学策略以及教与学活动,并对这四个要素交互设计的要点、构成和方法进行了研究.依据这一理论,我们开发了53个网络课程的交互设计模板,构建了网络课程交互模板库,为目标导向网络课程写作工具的实现奠定了基础.     

Comparing problem-based learning students to students in a lecture-based curriculum: learning strategies and the relation with self-study time

In educational theory, deep processing (i.e., connecting different study topics together) and self-regulation (i.e., taking control over one’s own learning process) are considered effective learning strategies. These learning strategies can be influenced by the learning environment. Problem-based learning (PBL), a student-centered educational method, is believed to stimulate the use of these effective learning strategies. Several aspects of PBL such as discussions of real-life problems, selecting literature by the students themselves, and formulating answers to learning issues encourage students’ use of deep processing and self-regulation. In the present study, third-year PBL law students were compared to third-year law students of a lecture-based program with respect to their learning strategies, which were measured with the Inventory Learning Styles (ILS; Vermunt in British Journal of Educational Psychology, 68, 149–171, 1998). In addition, the relation between time invested in self-study and learning strategies, when taking the instructional method into account, was explored. Results showed that PBL students reported to apply deep processing, self-regulation, and external regulation more frequently than their non-PBL counterparts. PBL seems to contribute to the use of effective learning strategies, but PBL students also relied more often on external sources for their regulation, such as teachers, course material, and assessment.     

Virtual university–a vehicle for development,cooperation and internationalisation in teaching and learning

The paper discusses the approaches of virtual university strategies and developments in Europe. The discussion is partly based on the work done in the Activity 5 in the EU Thematic Network E4 and partly to the experiences gained through the activities of EUNITE virtual university network of six European universities. Based on our experience we see, that e-learning and virtual university approach can be used for renewal of teaching and learning, both on and off campus. Just three years ago, universities seemed mainly to aim only to develop on campus teaching and learning through ICT. Lately, the use of e-learning as a tool for international cooperation and for virtual mobility (Virtual Erasmus) has started to develop through the activities of the European Union e-learning programmes and through the activities of some European university networks, like EUNITE. To promote virtual universities and e-learning, commitment and actions at all levels from EU to individual institutions are needed.     

From knowledge sharing to knowledge creation: A blended knowledge-management model for improving university students’ creativity

Creativity and knowledge management are both important competences that university students need to strive to develop. This study therefore developed and evaluated an instructional program for improving university students’ creativity based on a blended knowledge-management (KM) model that integrates e-learning and three core processes of KM: knowledge sharing, knowledge internalization, and knowledge creation. Moreover, this study investigated the underlying mechanisms that achieve the effectiveness of this model. A 17-week instructional program was conducted. The findings from both quantitative and qualitative analyses suggest the following. The blended KM model is effective in improving knowledge, dispositions, and abilities of creativity. The online sharing and evaluation of creative products, learning communities and discussions, and the practice of creativity strategies have substantial effects on all three aspects of creativity. The observation and peer evaluation of group assignments and creativity-related feedback enhance the learning of knowledge and dispositions. Finally, the creation of products and scaffolding of a teacher are critical to skill improvement.