The engagement agenda,multimedia learning and the use of images in higher education lecturing: or,how to end death by PowerPoint

This article is concerned with student engagement and understanding in large group teaching in Higher Education (HE). Specifically, it is concerned with the application of Multimedia Learning (MML) methods in Politics, History, International Relations, Sociology, Social Work, and Business and Economics teaching that privilege the use of images to complement text in lecture presentations. This ‘visual’ method, it is claimed in the literature, generates engagement and understanding better than text alone. This article develops, applies and empirically tests with students, MML methods across a range of Higher Education disciplines over three years. The research deploys Participatory Action Research (PAR) methods engaging students as active agents of investigation and change. It finds evidence to support the hypothesis that apposite images combined with reduced text increases students’ engagement and understanding with academic content, but that much formal research needs to expand on the range of demographics tested.     

Paired peer learning through engineering education outreach

ABSTRACT

Undergraduate education incorporating active learning and vicarious experience through education outreach presents a critical opportunity to influence future engineering teaching and practice capabilities. Engineering education outreach activities have been shown to have multiple benefits; increasing interest and engagement with science and engineering for school children, providing teachers with expert contributions to engineering subject knowledge, and developing professional generic skills for engineers such as communication and teamwork. This pilot intervention paired 10 pre-service teachers and 11 student engineers to enact engineering outreach in primary schools, reaching 269 children. A longitudinal mixed methods design was employed to measure change in attitudes and Education Outreach Self-Efficacy in student engineers; alongside attitudes, Teaching Engineering Self-Efficacy and Engineering Subject Knowledge Confidence in pre-service teachers. Highly significant improvements were noted in the pre-service teachers’ confidence and self-efficacy, while both the teachers and engineers qualitatively described benefits arising from the paired peer mentor model.     

WinSock控件在网络编程中的应用

WinSock控件是Windows应用程序和TCP/IP之间的一个接口控件。借助于WinSock控件可以有效地对网络进行编程。在论述了WinSock控件的原理及其特点的同时,重点给出了在VB下开发基于WinSock控件的网络通信程序及邮件处理程序的方法。     

La Parte Chusca of a Pedagogical Here and Now: Oaxacan Teachers’ Heteroglossic Joking About State Repression and Educational Reform

Faced with repression and reform, humor has become tactical for public school teachers in Oaxaca, Mexico, engaged in a decades-old movement that after 2006 involved intensified street- and school-based pedagogies. This piece explores how humor adds to a political project via mocking names, images, and dictates of elite leaders to bring a here and now to what is taken as inaccessible in the teachers’ political lives. Humor forms part of an (e)sc(h)atology in which critical practices are part eschatological, a call for definite transformation, and part scatological, embodied vulgarity. La parte chusca (the funny part), its (e)sc(h)atological contribution, angles toward critical literacies in Oaxaca and beyond.     

Cu-ZnO/Al2O3催化仲丁醇制备甲乙酮

用Cu-ZnO/Al2O3催化仲丁醇制备甲乙酮。研究了催化剂的焙烧温度和焙烧时间、仲丁醇脱氢反应的温度和压力以及仲丁醇的流量对仲丁醇转化率和甲乙酮选择性的影响。结果表明,催化剂的焙烧温度为300-400℃,焙烧时间为6h,脱氢反应的温度为300℃,压力为0.2Mpa,仲丁醇的流量为140mL/h时,仲丁醇的转化率和甲乙酮的选择性较好。     

Parent question use during shared reading time: How does training affect question type and frequency?

This study was designed to examine whether participation in a shared reading workshop alters the frequency with which parents ask their children questions during book reading sessions, particularly questions designed to strengthen component reading skills that they may not have known about before training. Participants in the reading workshop series (N = 57) were taught strategies for asking questions about story content and word structure to build children's language and literacy skills. Findings suggest that parents may be somewhat familiar with traditional dialogic reading strategies focused on story content and utilize them without instruction, whereas parents may be less knowledgeable about sound or print‐focused skills and do not employ strategies focused on word structure until instructed to do so. It is also notable that parents do not use all story content prompts equally. This information can be used by school psychologists to refine the messages educators share with parents about how to best support their children's reading development.     

Hydrogenation properties of mechanically milled Mg2Nio.8Cr0.2-CoO/Al2O3 composites

Mg2Ni0.8Cr0.2-x wt.% CoO/Al2O3 (x=0.5, 1, 2 and 3) composites were prepared by mechanically milling sintered Mg2Ni0.8Cr0.2 alloy and CoO/Al2O3 compound for 45 h. The addition of CoO/Al2O3 compound resulted in the good kinetics properties of hydriding/dehydriding reaction of the composites. The composite with 1.0 wt.% CoO/Al2O3 catalyst could reach the maximum hydrogen absorption capacity (2.9 wt.%) within 5 min at 393 K under H2 pressure of 4 MPa, and can desorb rapidly at 493 K. The decomposition and synthesis of hydrogen molecule on Mg2Ni0.8Cr0.2 alloy surface was promoted by addition of CoO/Al2O3 catalyst. In addition, the formation of metallic Ni particles, strain and defects during the ball milling process also resulted in the improved hydrogenation performance of Mg2Ni-based alloys.     

结合专业特色应用现代教育技术服务于中小学教学

现代教育技术的应用,深刻影响高中小学各科教学.传统的教学模式必须与现代教育技术进行整合,才能适应新课程教学改革的需要.充分发挥教育技术专业人才的主导作用,担当教育技术现代化的排头兵.     

实时多媒体数据传输的研究及实现

本文主要进行RTP／RTCP与TCP协议的比较，着重分析RTP／RTCP协议对分组网上视频业务Qos的保证。在IP电话的实现中编码后的数据流采用RTP／RTCP协议来打包传送。结果表明，开发出的软件实时性好。     

8253定时/计数器方式3计数过程的实验研究

对于我系选用教材和部分参考资料关于8253定时/计数器在方式3的计数过程中表述中所存在的矛盾之处,基于武汉众友电子科技有限公司的接口实验台,提出了一个探究8253计数过程的实验方案。通过分析实验结果,指出了正确的计数过程。