Introductory statistics in the garden          下载免费PDF全文

John C. Wagaman 《Teaching Statistics》2017,39(2):52-56

This article describes four semesters of introductory statistics courses that incorporate service learning and gardening into the curriculum with applications of the binomial distribution, least squares regression and hypothesis testing. The activities span multiple semesters and are iterative in nature.  相似文献   

Engineering students’ experiences of interactive teaching in calculus     

Maria Weurlander  Mikael Cronhjort  Lars Filipsson 《高等教育研究与发展》2017,36(4):852-865

This study reports on an educational development initiative where peer instruction was used instead of traditional lectures in a calculus course for first-year engineering students. The aim of the study was to explore students’ experiences of this method. Data were collected by means of an open-ended questionnaire on two occasions: early and late in the course. The data were analyzed with an inductive content analysis. The findings comprise three qualitatively different ways to experience the interactive teaching method in calculus: (1) enthusiasm, (2) nuanced skepticism and (3) aversion. The categories differed regarding emotional reactions to the teaching, experiences of learning, conceptions of teaching and learning, and experiences of meaningfulness. Many students expressed enthusiasm for learning with peer instruction and noted that the method gave both teachers and students feedback on what students have difficulties with. These students perceived that they were responsible for their own learning. Other students experienced that peer instruction had some advantages and disadvantages, and preferred a mix between traditional lectures and peer instruction sessions. They seemed to believe that teachers and students share responsibility for learning. Some students expressed an aversion for peer instruction and the method seemed to challenge their beliefs of how teaching and learning is best conducted. Our study illustrates that educational development initiatives, even though based on research on student learning, do not benefit all students. One of the major obstacles seems to be that students’ underlying beliefs regarding teaching and learning may be counterproductive to the ideas behind the educational initiative. We suggest that beliefs regarding teaching and learning need to be addressed when introducing new teaching and learning methods.  相似文献   

Manipulating cognitive engagement in preparation-to-collaborate tasks and the effects on learning     

《Learning and Instruction》2017

While collaborating with a peer can be highly beneficial for learning, more work is needed to understand how instructional activities in collaborative contexts should be designed so as to maximize learning outcomes. To address this, we investigated the impact of different types of preparatory and cognitively engaging tasks on learning from collaborating, using a 2 × 2 experimental study conducted in situ in four introductory psychology classes. We compared individual preparation versus no-preparation and “active” versus “constructive” tasks. A dyadic multilevel analysis showed that preparation prior to collaborating led to better deep learning outcomes, but that the type of preparation did not have a significant effect. We include an exploratory analysis of student dialogues during collaboration to further interpret our findings. We propose that a cognitively engaging preparation phase may lead to better learning because it encourages students to collaborate constructively even when the type of task does not elicit such engagement.  相似文献   

主动进气格栅技术研究     

俞晓勇  高树亮  韦凯军  覃耿宇  郜晗 《大众科技》2016,(3)

随着主动进气格栅技术在汽车上的逐步使用,主动进气格栅的技术优势逐步体现,文章阐述了主动进气格栅对整车行驶阻力的优化和整车热控制的相关影响,并以线性回归模型的方法对主动进气格栅的标定方法进行了初步探索。  相似文献   

Sliding mode control for active magnetic bearing system with flexible rotor     

Ming-Jyi Jang  Chieh-Li Chen 《Journal of The Franklin Institute》2005,342(4):401-419

This paper presents the analysis and control of active magnetic bearing (AMB) systems with a flexible rotor. A sliding mode controller design scheme is proposed to compensate for the nonlinear effects of the AMB system. A nonlinear model of the AMB system with an electromagnetic actuator and a flexible rotor is proposed to facilitate the present system analysis and controller design. This nonlinear model takes into account the dynamics of the flexible rotor, the characteristics of the nonlinear electromagnetic suspended system, and the contact force between the auxiliary bearing and the shaft. This study also considers the auto-centering control of the AMB system when subjected to disturbances and variations in the system parameters. The numerical results show that the system exhibits a periodic motion and demonstrates high accuracy and robustness when operating under sliding mode control.  相似文献   

The Magical Number 7     

Mary Richardson  Diann Reischman 《Teaching Statistics》2011,33(1):17-19

This article describes an interactive activity that involves students participating in a memory recall test. Data collected from the activity may be used to illustrate the one‐sample t test or one‐sample sign test.  相似文献   

武术影视对武术运动传播发展的积极影响与作用     

张振中  王学良 《搏击·武术科学》2011,8(11):10-11

随着现代化社会的发展,武术影视已成为我国影视业发展的重要组成部分,武术影视通过不断创新突破,不仅有效地促进了影视事业的发展进步,同时也对我国武术运动的传播与发展产生了积极、深远的影响。文章通过研究,辨证、客观地分析了武术影视对武术运动所产生的一些积极影响和作用,从而为我国武术运动更好、更快地传播与发展提供一些服务和参考。  相似文献   

图书馆服务与社交网络整合研究——清华大学图书馆书友会实践案例   总被引：6，自引：0，他引：6  

姚飞  张成昱  陈武  窦天芳 《图书馆杂志》2011,(6)

社交网络服务是图书馆在数字网络环境下的一种新服务形式。本文介绍了清华大学图书馆在融合图书馆服务和社交网络方面进行的具体实践。通过在社交网络平台上建立图书馆俱乐部,开发信息推送、图书搜索、智能聊天机器人等应用功能,为读者送去各种图书馆服务,以社交网络新模式开展主动服务。  相似文献   

图书馆知识传播营销的多角色参与   总被引：1，自引：0，他引：1  

张红萍 《图书馆杂志》2011,(5):10-12

文摘通过对图书馆营销案例的分析,提出作为营销核心主体的图书馆,应积极建立广泛的合作关系,发掘多种角色参与到图书馆的营销中来,充分利用个体、群体、专业机构、网络等力量提高图书馆的营销效果,扩大图书馆的影响力。  相似文献   

读者参与的高校图书馆学科服务新模式探讨   总被引：3，自引：1，他引：2  

艾春艳  游越  刘素清 《大学图书馆学报》2011,29(5):70-72

该文通过分析高校图书馆读者参与的学科服务模式,结合北大图书馆近期的相关实践,提出读者是高校图书馆最宝贵的资源之一,无论是教师读者还是学生读者都有着可被挖掘的巨大潜力。建议高校图书馆突破现有的学科服务模式,主动与读者进行多层次的创新合作,通过整合读者群体中的各种资源提高学科服务水平。  相似文献