基于慕课的程序设计类课程翻转课堂教学模式探索与实践

针对地方高校教学中普遍存在"知识讲授主导课堂"的现象,探索信息化环境下翻转课堂教学模式,提高课堂知识内化效率、提升学生学习能力.以学习平台资源建设、翻转课堂教学设计、学习分析和评价为主要内容,提出基于慕课的翻转课堂教学模式,并探讨该模式在程序设计类课程教学中的应用.对实践过程中的教学资源建设、翻转课堂运用和评价体系进行研究,为程序设计类课程翻转课堂教学模式改革提供新思路.     

互动媒体翻转课堂教学模式研究

从确定翻转课堂的学习目标、构建具有情境化和真实性的翻转课堂学习活动、加强技术撑持工具在翻转课堂教学中的合理应用以及实现翻转课堂学习评价模式的多元化等四个方面提出了互动媒体撑持下的翻转课堂教学模式设计路径。     

基于ADDIE模型的翻转课堂教学研究

随着信息化时代的快速发展,新型的教学方式"翻转课堂"引入课堂,然而优质的翻转课堂必须有系统的教学设计来支撑,因此,该文采用ADDIE模型进行系统性设计,旨提高翻转课程的教学的有效性。     

翻转课堂教学微视频设计与制作研究

让学生课前观看教学微视频是"翻转课堂"教学法得以顺利实施的关键环节."翻转课堂"课前任务必须完成知识传授的特点和学习者惯常采用的学习方式,共同决定了其学习资源建设应该以微型化、视频化为目标,以满足学习者利用零散的时间进行自定步调的个性化学习.以制作"画中画"式教学微视频为实例,从资源准备、目标设计、内容呈现和技术实现等多个维度进行阐述,系统论述了翻转课堂教学微视频设计与制作的原则与要点,为针对微视频进行有效学习提出了可操作方法.     

初识翻转课堂

近几年,翻转课堂教学法在国内外很受热捧,甚至被称为大势所趋的课堂革命。翻转课堂与传统课堂从课前学习、课堂组织到评价体系均有不同,它有很多传统课堂无法相比的优势,但也有自身的局限性。该文仅从翻转课堂与传统课堂的区别、翻转课堂的优势、翻转课堂的局限性等几方面谈了对翻转课堂的认识。最后得出结论:只有结合课程情况、实际条件,充分调动学生学习的自觉主动性,井配合相应的考核、评价体系,才能真正实现翻转,达到预期的教学效果。     

高校基于翻转课堂的移动APP框架构建研究

在翻转课堂课前网络教学中,受计算机携带不便和网络空间和限制,无法满足学生随时随地、自定步调、自主学习的需求,教学质量难以保证.阐述了翻转课堂和APP研究现状及翻转课堂使用APP客户端的重要意义,设计了基于翻转课堂的APP客户端研究框架,打破了时间和空间的局限,实现即时交流和教学效果监控,激发学生学习的积极性、主动性,充分发挥智能手机移动碎片化学习的功能.     

高校体育教学中实施翻转课堂的实践研究

采用文献资料法、问卷调查法和教学实验法探索翻转课堂教学模式在高校体育教学中的应用.结果表明:1)在体育教学中实施翻转课堂有很好的作用,能够增加学生参与度和学习兴趣,增加学生之间的团队协作,为学生提供个性化指导,真正实现以学生为中心,解放了教师;2)实施翻转课堂前的教学准备包括选择合适的内容进行翻转课堂教学,制定撰写教案,教学视频的录制和收集,网络课堂建设;3)体育教学中翻转课堂教学模式的实施过程包括课前布置学习任务,课前学生分组进行练习,课堂教学的检查与指导,教学成果的课堂展示,体育课堂中翻转课堂模式的教学评价;4)体育教学中实施翻转课堂还存在许多问题,如网络平台的完善,教学内容缺乏系统性,学生的自我学习能力有待提高,教师和学生都要及时转变观念接受新型教学模式.     

翻转课堂教学实践探索研究

伴随日益更新的教学理念和网络技术,信息技术与课程整合在教学实践中日渐深入.当前翻转课堂为"主体—主导"的教学实践提供了新的路向.在梳理翻转课堂起源与内涵基础上对翻转课堂进行教学设计与实践,通过对课前预习效果与课上学习过程的分析,得出翻转课堂对学生自主学习能力以及解决问题能力提高有一定教学实践意义,指出翻转课堂对教师课堂设计与引领经验以及学生课前自控与自主学习能力是一种挑战,需要进一步加强与提高.     

基于网络学习平台的翻转课堂教学设计与实践--以公共教育学为例

翻转课堂通过颠倒的教学设计，将学生学习置于课前，将作业、讨论和成果交流置于课上；通过对教学时空的重新规划，实现对传统教学模式的革新。韶关学院公共教育学课初步建成的网络课程平台为翻转课堂的实现提供了学习支持系统，教师采取一定的流程控制手段重新组织教学实践，能解决学生学习自主性缺乏的困境。而公共教育学的翻转课堂开展还需要师生进一步转变思想观念、提高各项能力，加大网络学习平台建设，建立新的课程学习评价体系，适当缩小班级规模。     

高校体育专业篮球理论课“翻转课堂”教学设计要素分析

“翻转课堂”用于篮球理论课教学是新兴的现代化教学方式,教学设计是影响教学效果的关键要素,是课堂实施的基石.笔者从教学要素中的教学设计入手,采用文献资料法、访谈法、实地调查法,对本地区已实施高校篮球理论课“翻转课堂”的教师和学生进行半开放性深度访谈.对课堂教学设计进行分析,得出教学设计中的关键子要素及其重要性排序,并提出相应建议.     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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Advances in broadband wireless communications under high-mobility scenarios

Future mobile communication systems aim at providing very high data transmission rates, even in high-mobility scenarios such as high-speed wheel-track trains, maglev trains, highway vehicles, airplanes, guided missiles or spacecraft. A particularly important commercial application is the strong and increasing worldwide demand for high- speed broadband wireless communications （up to 574.8 km/ h test speeds or 380 km/h commercial speeds） in railways, providing data, voice and video services for applications such as onboard entertainment services to passengers, train control, train dispatch, train sensor status handling and sur- veillance. In such high-mobility scenarios, there are a number of communication challenges, including fast hand- over, location updating, high-speed channel modeling, estimation and equalization, anti-Doppler spreading tech- niques, fast power control, and dedicated network architec- ture. Because signal transmission in very high-speed scenarios will inevitably experience serious deterioration, it is imperative to develop key broadband mobile communi- cation techniques for such high-speed vehicles.     

Perspherical Approaches for Electrons in Atoms and Charged Excitons in Quantum Wells

Instead of following Fock’s expansion,we solve the Schrodinger equation for some quantum mechanical manybody systems such as electrons in atoms and charged excitons in quantum wells in a similar way in hyperspherical coordinates by expanding the wave functions into orthonormal complete basis sets of the hyperspherical hannonics(HHs)of hyperangles and generalized Laguerre polynomials(GLPs)of the hyperradius.This leads the equation to     

Scale-based spatial data model for GIS

Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer-based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer-based model. Furthermore, in Web-Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale-based model. In this model we represent maps in three levels: scale-view, block, and spatial object, and organize the maps in a set of map layers, named Scale-View, which associates some given scales.Lastly, a prototype Web-Based GIS using the proposed spatial data representation is described briefly.     

英文诗歌中的喻类修辞

为了有助于提高英文爱好者的个人情操、文化素养和学习兴趣,以及专业人员对英语学习和研究进行多途径的探索,本文通过一些精选诗歌的引证和分析,着重论述了喻类修辞法在英文诗歌中的运用其及效果。     

Man Is Unable to Change the Miserable Life——Analysis of the Arrangement of Four Characters in The Glass Menagerie

Tennessee Williams is considered as one of the most important American playwrights since World War II.The Glass Menagerie is his first successful drama,which describes a tragic situation of family and means to say that Man is unable to change the miserable life,no matter whatever means he try,This essay focuses on the analysis of the arrangement of the four main characters:Laura.Amanda,Jim and Tom to reveal the theme.Laura is fragile.Amanda is brave.Jim is vital.Tom is sensible.And all of them develop and try the different means to struggle against life,but fail tragically.With the evidence,the paper comes to conclusion naturally that Man is unable to change the miserable life,and he dooms to fail.     

Characterization of root-nodulating bacteria on Retama raetam in arid Tunisian soils

The aim of this study is to investigate the diversity of Retama raetam root-nodule bacteria isolated from arid regions of Tunisia. Twelve isolates, chosen as representative for different 16S rRNA gene patterns, were characterized by 16S rRNA gene sequencing and phenotypic analysis. Isolates were assigned to Sinorhizobium, Rhizobium and Agrobacterium. Symbiotic properties of Sinorhizobium and Rhizobium isolates showed a large diversity in their capacity to infect their host plant and fix atmospheric nitrogen. Strain RK 22 identified as Rhizobium was the most effective isolate.     

An Affordable Accurate Evaluation of the Binding Conformations Predicted by Molecular Docking Studies in Bio-System

正Recently,docking has been widely used to predict the binding-modes of protein-inhibitors,when the crystal complexes structure was absent.Most docking algorithms are able to generate a large number of probable conformations,it,however,is difficult to effectively evaluate these docking poses and identify the most reasonable bindingmode.In the present study,on the basis of the crystallographic data of human 3-hydroxy-3-methylglutaryl coenzyme     

WIMAX与WI-FI技术分析及联合组网

介绍了WiMAX与Wi-Fi两种无线宽带接入技术,并对两者之间的关系及相互之间的影响做了对比及分析,并对WiMAX的关键技术进行了详细说明,最后对两者的联合组网方式做了简单的探讨。