录像反馈在排球普修教学中的应用与研究     

周静  刘振忠 《教育教学论坛》2014,(7):37-38

本文通过在排球教学中引入控制论中的反馈原理,利用摄录系统将学生的动作进行录像,然后进行观看分析,针对动作状态提出改进方案,再次练习、录像,再次分析,循环往复。结果证明,运用录像反馈分析与评价检验学生的动作技术,有利于加速学生的动作技术的掌握和提高,同时也激发了学生的学习兴趣,活跃了课堂气氛,全面地提高了教学效果。  相似文献   

A retrospective look at replacing face‐to‐face embryology instruction with online lectures in a human anatomy course          下载免费PDF全文

Elmus G. Beale  Patrick M. Tarwater  Vaughan H. Lee 《Anatomical sciences education》2014,7(3):234-241

Embryology is integrated into the Clinically Oriented Anatomy course at the Texas Tech University Health Sciences Center School of Medicine. Before 2008, the same instructor presented embryology in 13 face‐to‐face lectures distributed by organ systems throughout the course. For the 2008 and 2009 offerings of the course, a hybrid embryology instruction model with four face‐to‐face classes that supplemented online recorded lectures was used. One instructor delivered the lectures face‐to‐face in 2007 and by online videos in 2008–2009, while a second instructor provided the supplemental face‐to‐face classes in 2008–2009. The same embryology learning objectives and selected examination questions were used for each of the three years. This allowed direct comparison of learning outcomes, as measured by examination performance, for students receiving only face‐to‐face embryology instruction versus the hybrid approach. Comparison of the face‐to‐face lectures to the hybrid approach showed no difference in overall class performance on embryology questions that were used all three years. Moreover, there was no differential effect of the delivery method on the examination scores for bottom quartile students. Students completed an end‐of‐course survey to assess their opinions. They rated the two forms of delivery similarly on a six‐point Likert scale and reported that face‐to‐face lectures have the advantage of allowing them to interact with the instructor, whereas online lectures could be paused, replayed, and viewed at any time. These experiences suggest the need for well‐designed prospective studies to determine whether online lectures can be used to enhance the efficacy of embryology instruction. Anat Sci Educ 7: 234–241. © 2013 American Association of Anatomists.  相似文献   

Developing an audiovisual notebook as a self‐learning tool in histology: Perceptions of teachers and students          下载免费PDF全文

Antonio Campos‐Sánchez  Juan‐Antonio López‐Núñez  Giuseppe Scionti  Ingrid Garzón  Miguel González‐Andrades  Miguel Alaminos  Tomás Sola 《Anatomical sciences education》2014,7(3):209-218

Videos can be used as didactic tools for self‐learning under several circumstances, including those cases in which students are responsible for the development of this resource as an audiovisual notebook. We compared students' and teachers' perceptions regarding the main features that an audiovisual notebook should include. Four questionnaires with items about information, images, text and music, and filmmaking were used to investigate students' (n = 115) and teachers' perceptions (n = 28) regarding the development of a video focused on a histological technique. The results show that both students and teachers significantly prioritize informative components, images and filmmaking more than text and music. The scores were significantly higher for teachers than for students for all four components analyzed. The highest scores were given to items related to practical and medically oriented elements, and the lowest values were given to theoretical and complementary elements. For most items, there were no differences between genders. A strong positive correlation was found between the scores given to each item by teachers and students. These results show that both students' and teachers' perceptions tend to coincide for most items, and suggest that audiovisual notebooks developed by students would emphasize the same items as those perceived by teachers to be the most relevant. Further, these findings suggest that the use of video as an audiovisual learning notebook would not only preserve the curricular objectives but would also offer the advantages of self‐learning processes. Anat Sci Educ 7: 209–218. © 2013 American Association of Anatomists.  相似文献   

计算机机房视频监控系统建设     

任钊 《淮北职业技术学院学报》2014,(4):122-123

计算机机房承担着教学和试验等功能。随着信息技术和视频设备的发展,计算机机房的管理也应该从单一的点式管理发展到网络化、信息化的集约管理上来。我们应当建立由视频终端、传输、控制、显示、记录登记5大部分组成的计算机机房视频实时监控系统,以有效提高机房管理的质量和效率。  相似文献   

高校图书馆入馆教育视频的实现与探索     

王家兵 《中国现代教育装备》2014,(3):74-75

介绍采用视频方式对学生开展高校图书馆入馆教育的方法。对入馆教育视频的策划、内容设计、制作、发布、优化等具体实施过程及方法进行了详细论述,并针对采用视频方式开展图书馆入馆教育的相关问题进行探讨,以便更好地对学生开展入馆教育。  相似文献   

面向艺术教育的移动视频资源平台设计与实现     

王怡  ;刘志民  ;刘春迪  ;姜洪亮  ;李鑫星 《现代教育技术》2014,(10):68-72

虽然近年来我国普通高校艺术教育取得了可喜成绩,但仍存在教育教学资源不足、课时少、师资及课堂容量有限等诸多问题,该文将视频电话技术应用于普通高校艺术教育领域,通过艺术教育教学视频资源库构建、面向视频电话的视频压缩、SIP协议与3G-324M协议的互通等一系列相关研究,实现信息技术和艺术教育的整合,使得学生可在校园网内通过移动终端获取艺术教育教学视频资源,随时随地学习和复习艺术教育知识,从而满足个性化、多样化的艺术教育需求。  相似文献   

多视点视频编码预测结构的研究     

柳伟  邓凯文  陈小平 《深圳信息职业技术学院学报》2014,(3):35-39

不同的多视点视频序列具有不同的时空相关性,MVC采用的分层B帧预测结构无法充分利用视频序列的属性。本文提出了一种能适应不同视频序列编码的方法,通过研究多视点视频图像中的时空相关性和视点间的相关性,适当地取消部分时间层的视点间预测并且对所有P视点的非关键帧均采用视点间预测和调整了I视点的位置。实验结果表明,本文方法在提高编码效率的同时使得预测结构具有更好的随机访问性能、更低的编码复杂度。  相似文献   

视频图像技术的发展及在田径项目训练中的应用   总被引：3，自引：0，他引：3  

李爱东  苑廷刚  李汀  艾康伟  李鸿江  王保成 《体育科学》2005,25(6):42-46

通过文献资料调研、计算机视频图像处理软件的实验应用开发,对图像处理技术在田径项目训练中的主要应用进行探讨,主要内容包括图像处理技术简介;图像处理技术应用到体育科研中的几项新技术出现及发展情况;在田径项目训练中的应用方法和手段,视频图像技术反馈运动实践的主要形式和效果;进行图像处理工作所需要的软硬件基本配置情况及应用的主要目标。预测图像处理技术今后将会在体育科研攻关和服务中得到广泛的应用。  相似文献   

电视制作在高校图书馆的应用     

万勇 《现代图书情报技术》2003,19(1):85-86

电视制作和图书馆似乎是毫不相干，但现代信息技术和计算机应用技术的普及，使它们之间找到了交叉点。电视制作进入图书馆，更新了人们的传统观念，是图书馆工作的一个创新。  相似文献   

Powerpoint中巧用flash、视频和声音     

孙曼曼  崔素丽 《大众科技》2012,14(4):9-10,3

在教学中我们经常使用PowerPoint制作课件,在用PowerPoint制作多媒体课件的时候,若加入flash动画、视频和声音,可以在教学过程中增强课件的表现力,起到很好的教学效果。  相似文献