共查询到20条相似文献，搜索用时 31 毫秒
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Recent research has remarked upon the widespread use of Internet sources by undergraduate students in support of their written ideas. Results of this research indicate there is a tendency for some students to cite sources whose content meets their expedient needs, while ignoring standards of rigor typically required for academic citation. Despite this tendency, the present study explores whether Web sources which would normally be considered unconventional for academic citation, in fact, offer enriching content. This study isolates the unconventional Web references from three second-language students' research papers for qualitative analysis. Results indicate that although the cavalier use of Web sources by students remains a serious concern, unconventional sites can sometimes be an unusually rich source of information. Such a finding has implications for how students are taught to consider Internet sources. Specifically, it is suggested that sites normally considered unconventional not be summarily dismissed as potential sources of information. 相似文献
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Amy M. Johnson Gamze Ozogul Matt D. DiDonato 《European Journal of Engineering Education》2013,38(5):519-531
Computer-based multimedia presentations employing animated agents (avatars) can positively impact perceptions about engineering; the current research advances our understanding of this effect to pre-college populations, the main target for engineering outreach. The study examines the effectiveness of a brief computer-based intervention with animated agents in improving perceptions about engineering. Five hundred sixty-five elementary, middle-, and high-school students in the southwestern USA viewed a short computer-based multimedia overview of four engineering disciplines (electrical, chemical, biomedical, and environmental) with embedded animated agents. Students completed identical surveys measuring five subscales of engineering perceptions immediately before and after the intervention. Analyses of pre- and post-surveys demonstrated that the computer presentation significantly improved perceptions for each student group, and that effects were stronger for elementary school students, compared to middle- and high-school students. 相似文献
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Claudia Schrader Maria Reichelt Steffi Zander 《Educational technology research and development : ETR & D》2018,66(6):1387-1397
By focusing on the personalization principle, the present study investigates whether two different language presentation formats of a multimedia presentation influence students’ learning outcome and how individual interest towards the learning material moderates this impact. German students (N?=?104) were randomly assigned to either a conversational or a formal language format of the multimedia presentation that taught Gestalt Laws. The results of this study showed that there were more positive effects on the learning performance in the conversational presentation format than the formal language format. This was, therefore, an indication of the effects of personalization. Furthermore, individual interest is a significant predictor for learning in this study. By testing different percentiles of individual interest, the findings showed that students with intermediate interest were affected by the format of language style. In contrast, learning results of students with the very lowest and very highest individual interest were not affected by different language styles. These results underline the necessity to take into account individual motivational prerequisites when designing multimedia learning environments. 相似文献
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Presentation feedback can be limited in its feed-forward value, as students do not have their actual presentation available for review whilst reflecting upon the feedback. This study reports on students’ perceptions of the learning and feed-forward value of an oral presentation assessment. Students self-marked their performance immediately after their presentation, after reviewing a video recording of their presentation and wrote a reflection relating to their experience. Survey data revealed that most students viewed all aspects of the assessment task positively and they rated the process as providing substantial learning value. They also indicated that the video review and overall assessment exercise provided valuable feed-forward information that would assist them to improve future presentations. These data were further supported by content analysis of the qualitative data. Students noted that they perceived the video review task as self-enabling. They also noted that the self-reflection and self-marking exercise provided time for thought although it was personally challenging. Therefore, via carefully designed assessment, it is possible to provide a deep learning opportunity from oral presentations that can feed-forward to enhance students’ future presentations. 相似文献
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《学校用计算机》2013,30(3-4):77-86
SUMMARY The current study chronicles what one professor learned from teaching a distance education course with and without the aid of PowerPoint multimedia presentation software. It compares student ratings of three lectures from the same classes by the same professor; the first, a traditional lecture without any audiovisual aids; the second, a lecture supplemented by PowerPoint notes outlining the lecture; and finally, a multimedia lecture utilizing PowerPoint notes with pictures, music and animations. Students reacted no differently to any of the presentations when delivered by an experienced teacher. The students did, however, prefer PowerPoint multimedia to PowerPoint outline presentations. Suggestions for the optimal uses of presentation software are provided. 相似文献
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Robert Bleicher 《科学教学研究杂志》1994,31(7):697-719
Presenting science is an authentic activity of practicing scientists. Thus, effective communication of science is an important skill to nurture in high school students who are learning science. This study examines strategies employed by high school students as they make science presentations; it assesses students' conceptual understandings of particular science topics through their presentations and investigates gender differences. Data are derived from science presentation given by eight high school students, three females and five males who attended a summer science program. Data sources included videotaped presentations, ethnographic fieldnotes, interviews with presenters and members of the audience, and presenter notes and overheads. Presentations were transcribed and submitted to discourse analysis from an interactional sociolinguistic perspective. This article focuses on the methodology employed and how it helps inform the above research questions. The author argues that use of this methodology leads to findings that inform important social-communicative issues in the learning of science. Practical advice for teaching students to present science, implications for use of presentations to assess conceptual learning, and indications of some possible gender differences are discussed. 相似文献
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《工程力学》多媒体教学方法的探讨 总被引：5，自引：0，他引：5
本文分析了《工程力学》课程多媒体教学的必要性,阐述了《工程力学》多媒体教学方法中非常重要的三方面问题:多媒体只是辅助教学的工具,多媒体课堂教学仍应以教师为主导;学生为主体,开展生动活泼的启发式教学;不要使学生注意力集中在多媒体展示技巧上,使之不能达到教学目标。 相似文献
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Brady Michael Jack Ling Lee Kuay-Keng Yang Huann-shyang Lin 《Research in Science Education》2017,47(5):965-988
This study showcases the Science for Citizenship Model (SCM) as a new instructional methodology for presenting, to secondary students, science-related technology content related to the use of science in society not taught in the science curriculum, and a new approach for assessing the intercorrelations among three independent variables (benefits, risks, and trust) to predict the dependent variable of triggered interest in learning science. Utilizing a 50-minute instructional presentation on nanotechnology for citizenship, data were collected from 301 Taiwanese high school students. Structural equation modeling (SEM) and paired-samples t-tests were used to analyze the fitness of data to SCM and the extent to which a 50-minute class presentation of nanotechnology for citizenship affected students’ awareness of benefits, risks, trust, and triggered interest in learning science. Results of SCM on pre-tests and post-tests revealed acceptable model fit to data and demonstrated that the strongest predictor of students’ triggered interest in nanotechnology was their trust in science. Paired-samples t-test results on students’ understanding of nanotechnology and their self-evaluated awareness of the benefits and risks of nanotechology, trust in scientists, and interest in learning science revealed low significant differences between pre-test and post-test. These results provide evidence that a short 50-minute presentation on an emerging science not normally addressed within traditional science curriculum had a significant yet limited impact on students’ learning of nanotechnology in the classroom. Finally, we suggest why the results of this study may be important to science education instruction and research for understanding how the integration into classroom science education of short presentations of cutting-edge science and emerging technologies in support of the science for citizenship enterprise might be accomplished through future investigations. 相似文献
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Learners are usually provided with support devices because they find it difficult to learn from multimedia presentations. A key question, with no clear answer so far, is how best to present these support devices. One possibility is to insert them intothe multimedia presentation (canned support), while another is to have a human agent provide them (human tutoring). Human tutoring poses potential advantages: it uses spoken modality, displays non-verbal cues and implies social interaction. However, there is mixed evidence regarding these supposed advantages, and prior research comparing human and computer support presents problems. Our goal was to explore whether the advantages of human tutoring actually exist while avoiding the problems of prior research. In one experiment, participants learned Geology from a multimedia presentation including one of three forms of support: human tutoring, canned support or no support. After viewing the presentation, participants solved retention and transfer tests. Results revealed that participants in the human tutoring condition outperformed those in the other two conditions, who did not differ from each other. This means that human tutoring is advantageous, a fact that has implications in the design of support devices in multimedia learning. 相似文献
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Oral presentation skills are considered essential workplace skills and are therefore highly valued in higher education. However, research into this aspect of adult learning is limited, especially in the context of distance and online education. This paper reports on an innovative approach used in a university preparatory program in Australia. Distance students were responsible for choosing a topic, setting and audience, and assessment was based on their self-reflections on the experience. Such an approach represents a radical departure from the usual methods used to practise and assess oral presentations. In this qualitative case study, we draw on students’ responses via portfolio reflections and interviews, using principles of adult learning as a framework for thematic analysis. Findings suggest that this activity fulfilled the needs of adult learners in a number of significant ways, and for some of these students, this oral presentation was a meaningful, even transformative experience. 相似文献
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Acquiring complex conceptual knowledge requires learners to self-regulate their learning by planning, monitoring, and adjusting the process but they find it difficult to do so. In one experiment, we examined whether learners need broad systems of support for self-regulation or whether they are also able to learn with more economical support configurations. Eighty-six undergraduate students with little prior domain knowledge learned plate tectonics from a multimedia presentation involving animation with concurrent narration and support in one of four forms: minimal support, two variants of intermediate support, or extensive support. After the presentation, participants solved retention and transfer tests. The results revealed that participants receiving the broadest system of support outperformed those in the other conditions, which did not differ from one another. This means that it is so difficult for learners to self-regulate learning that they need considerable support if they are to learn complex conceptual knowledge. 相似文献
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Jie Chi Yang 《Interactive Learning Environments》2013,21(4):369-385
Recently, multimedia-based learning is widespread in educational settings. A number of studies investigate how to develop effective techniques to manage a huge volume of video sources, such as summarization and recommendation. However, few studies examine how these techniques affect learners' perceptions in multimedia learning systems. This article aims to examine learners' perceptions for summarization and recommendation, with an emphasis on the perspective of prior experience. In this study, we developed a multimedia content summarization and recommendation system, which can automatically extract summaries from raw video sources and recommend suitable video content to learners through emails. The results demonstrate that learners' prior experience and preferences for the presentation of document types affect their perceptions, including the enhancement of interests, the ease of information acquisition and the intention for the further use of the system. Finally, the findings are applied to develop a framework that can support for the design of multimedia learning systems. 相似文献
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Nitin Naik 《欧洲特需教育杂志》2017,32(1):146-152
AbstractIn higher education, supporting students with special educational needs (SEN) necessitates an understanding of these needs, additional teaching aids and innovative ideas. The teacher must be an integral part of this support process, and this is difficult for the majority of teachers, due to their lack of core understanding of SEN. However, teachers can focus on their core skills and content knowledge, and have immense alacrity to explore potential options to support their students with SEN. I decided to support my students with SEN by adapting my PowerPoint presentations according to their requirements. PowerPoint presentations usually provide concisely summarised information to students that often lead to confusion in their pre-lecture or post-lecture review. This lack of comprehensive subject information within PowerPoint presentations can have serious implications for students with SEN and their note-takers if no other teaching resources or aids are available to help them. Students with SEN and note-takers reported this concern to me at Aberystwyth University, UK. Consequently, I began to explore ways to make my PowerPoint presentations extra helpful for my students with SEN. After a review of best practices for students with SEN based on universal design for learning and a few trials, I developed a dual PowerPoint presentation (DPP), lecture handouts and comprehensive lecture notes. Subsequently, I successfully employed this approach in the delivery of some of the undergraduate modules of a BSc computer science programme. Feedback from students with SEN, note-takers and the student support department, and examination results showed the success and potential of this DPP approach. 相似文献
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介绍作者在中国科技大学少年班学院讲授化学课程的创新举措：包括吸收美国教材的长处;利用多媒体教学;布置思考型和讨论型课外作业;邀请学生到家中交流;开卷考试;支持学生设计科学小实验,鼓励他们做科学演讲等。实践表明,美式教学方法与国内情况结合,有利于调动学生主动学习现代科学知识的积极性,已受到学生及家长的欢迎和关注。 相似文献
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针对信号分析与处理课程的特点,本文提出以工程背景为导向,让学生自己动手编制程序实现某些关键知识点,并将其应用于实际信号的处理与分析中。这样不仅加深了学生对知识点的理解,也提高了他们解决实际问题的能力。同时,教学设计中增加了例题讲解、师生互动、多媒体播放、总结陈词、讨论会、辩论赛等多个环节,鼓励尽可能多的学生参与到课堂教学中来,增加了课堂的趣味性和实用性,解决了学生学习风气差、上课注意力不集中等问题,提高了课堂的效率。 相似文献
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Lisa K. Pennington 《Teacher Development》2018,22(5):607-631
Museums often cite supporting teachers and schools as a goal, and museum educators frequently create resources or provide professional development for this audience, though the two entities have little contact. This qualitative study sought to examine the perspectives of museum educators at a regional Holocaust museum as they planned and presented two-week-long professional development workshops for educators. Pre-workshop and post-workshop interviews were conducted with three museum educators responsible for the workshops, which were also observed in their entirety. Findings indicate that all three museum educators believed the Holocaust to be difficult knowledge. However, each approached the topic in a different manner based on their personal experience and understanding of Holocaust education, resulting in three vastly different presentation styles. These varied presentations resulted in an uneven focus on content, with few concrete classroom connections. The article concludes by discussing implications for museum-initiated professional development and avenues for further research. 相似文献
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Kerry Shephard 《British journal of educational technology : journal of the Council for Educational Technology》2001,32(2):161-170
This paper explores the use of multimedia in assignments that are submitted on compact discs (CD). The storage capacity of the CD allows students to use a wide range of memory-intensive sources that could not be incorporated into conventional or web-based formats. The paper examines the sources of media available; techniques for editing and incorporating media files; the technology of the CD, and copyright. The paper also discusses assessment criteria, equal opportunity considerations and a range of pedagogical issues involved in the use of the CD for submission of assignments. Today's technology should enable students to incorporate a range of memory-intensive media into their assignments and research reports and this process may be highly beneficial to learning and assessment. Widespread use of this technology, however, is likely to depend on solutions to difficult copyright restrictions, adequate training of students and staff as well as access to suitable hardware. 相似文献
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Karen Adams 《高等教育研究与发展》2004,23(2):115-130
Most postgraduate research students face the task of presenting an oral seminar on their proposed research early in their candidature. Those of us who work with international postgraduate research students know that they can find this task daunting, and the literature both in Australia and abroad confirms that these students often lack confidence in this task. This paper presents findings of a small case study which compared the influence of observing a seminar performance of a peer to that of a senior academic on the confidence, or self‐efficacy, for seminar presentations of participants in a bridging program for international postgraduate research students at an Australian university. Participants responded to a 19‐item questionnaire which measured self‐efficacy for four areas of seminar presentation: speech, display, content, and presenter presence. The results indicated that the use of a peer model performance was the more effective pedagogical method for enhancing student confidence in this context. 相似文献