T型旋光管的研制及其在实验教学中的应用     

张业云  王彦美  樊玲  尚贞锋 《实验技术与管理》2021,(3):113-115,119

蔗糖水解反应是经典的物理化学实验之一,常以旋光法测定其反应速率常数和活化能。该文针对实验教学过程中发现的原装旋光管恒温效果不佳等问题,研制了T型旋光管。该管一体成型,可避免试液渗漏,提高实验安全性;其恒温夹套全包覆,可加强恒温效果,减小实验误差;漏斗式的加样口便于操作,可提高实验效率。该T型旋光管已应用于该校的物理化学实验教学中,取得了良好的教学效果。  相似文献   

坚持"两个务必"与实践"三个代表"的辩证统一关系     

韩振峰 《河北大学成人教育学院学报》2003,5(3):5-8,16

“三个代表”重要思想的提出，是我们党在新的历史条件下对“两个务必”思想的延伸、丰富和发展。“两个务必”和“三个代表”虽然是在不同历史条件下提出来的，但是它们之间具有辩证统一的关系。坚持“两个务必”是实践“三个代表”的重要前提；实践“三个代表”是坚持“两个务丛”的最终目的，二者相互联系、相互影响、相互促进。  相似文献   

STS教育在无机化学教学中的应用   总被引：2，自引：0，他引：2  

哈文秀 《陕西师范大学继续教育学报》2003,20(4):117-118

本文介绍了STS概念的产生、STS与教育的关系以及STS在无机化学教学中的应用。  相似文献   

解放思想是发展中国特色社会主义的一大法宝     

韩振峰 《高校理论战线》2007,2(12):12-15

解放思想,是党的思想路线的本质要求,是发展中国特色社会主义的一大法宝.在新的历史条件下,只有坚定不移地坚持解放思想,才能不断开创中国特色社会主义事业新局面.  相似文献   

当代国际竞争与美国教育优先政策探究     

李震峰  张燕军 《浙江教育学院学报》2011,(2):66-70

二战后,美国在经济、军事和教育等领域经历了一系列来自国际竞争的挑战。美国政府应对的重要措施之一就是促进教育优先发展,具体表现为：把教育跟巩固国防紧密相联,规定教育优先领域,不断提高教育经费投入比例,以及通过法令推进教育优先政策等。美国的做法至少有以下三点值得借鉴：其一,顺应时势,面对挑战,规定优先项。其二,不同时期,变化优先项。其三,通过立法,增拨经费,资助优先项。  相似文献   

Teacher reactions to the performance-based bonus program: how the expectancy theory works in the South Korean school culture     

Bong-Woon Ha  Youl-Kwan Sung 《Asia Pacific Education Review》2011,12(1):129-141

This study was conducted in order to examine how and to what extent the implementation of the performance-based bonus program in South Korean schools has motivated teachers to improve their behavior, as well as to identify any other positive or negative effects of the program. Interviews with teachers indicated that a large percentage of teachers did not have a clear understanding of the evaluation system and did not feel that the evaluation standards were indicative of good teaching practice or that the evaluators were sufficiently experienced to conduct the evaluations. As a result, teachers generally had negative opinions regarding the program and did not support its continuation. Aligned with the expectancy theory, it was found that the Korean teachers’ expectancy probabilities were low, instrumentality was low, most did not value a bonus, and they perceived other negative outcomes from the program. Therefore, most teachers stated that the program was not motivating them to improve their instructional performance. Further, schools’ cultural factors such as seniority, the traditional concept of Sesheng, and mistrust of job security turn out to not facilitate the original intention of the policy.  相似文献   

物联网环境下的信息安全研究   总被引：1，自引：0，他引：1  

陈新平  徐广印  王振锋 《科技管理研究》2013,33(1)

分析物联网环境下私人信息的特点、个体对信息安全的需求,根据个体信息安全的需求和物联网的特点,提出建立物联网环境下法律框架的思路,通过国家立法和自律来保护私人信息.  相似文献   

“嬉”与“习”:建构主义视角下的游戏课程的思考     

余萍 《四川职业技术学院学报》2012,22(3):56-58,87

游戏与课程之间的关系源远流长,可谓是对立与融合交替进行,然而对智育的强调使幼儿园游戏陷入一种困境。在这种背景下,建构主义强调学习者主动建构的知识观作为一种新的学习理论,为幼儿园课程指明了方向,游戏之于课程不再是障碍,充分体现幼儿主体性、培养其创造性的游戏课程为幼儿园课程提供了新的范型。  相似文献   

Silence as right,choice, resistance and strategy among Chinese ‘Me Generation’ students: implications for pedagogy     

Phan Le Ha  Binghui Li 《Discourse: Studies in the Cultural Politics of Education》2014,35(2):233-248

The topic of silence and ‘the Chinese learner’ has been extensively studied often in relation to cross-cultural adjustment, intercultural issues, learning styles, language ability and differences of classroom expectations. These studies have often led to recommendations to understand silence and ‘the Chinese learner’ in more complex ways. However, there is a real need to go beyond just recognising the complexity and myths underlying these two notions. This article consolidates the need to recognise diversity and fluidity among this group of students and the changing time and space in which silence experiences among them are contextualised and studied. It does so by revisiting established meanings of in-class silence obtained from a qualitative case study with ‘Me Generation’ Chinese students studying in Australia, while contextualising the phenomenon in both Chinese and Australian classrooms. Pedagogical implications building upon the discussion of silence as right, choice, resistance and strategy among these students are provided.  相似文献   

The Effect of Learner-Generated Drawing and Imagination in Comprehending a Science Text     

Lijia Lin  Chee Ha Lee  Slava Kalyuga  Ying Wang  Shuchen Guan  Hao Wu 《Journal of Experimental Education》2017,85(1):142-154

The purpose of the study was to investigate the effects of imagination and learner-generated drawing on comprehension, reading time, cognitive load, and eye movements, and whether prior knowledge moderated the effects of these two strategies. Sixty-three undergraduate students participated in a pretest-posttest between-subjects study with the independent variable being the instructional strategies with three levels (learner-generated drawing vs. imagination vs. repeated reading). The results revealed that, compared to repeated reading, learner-generated drawing fostered learners' comprehension when their prior knowledge was relatively low. Moreover, when asked to read the science text after the intervention, learners who were previously engaged with imagination spent significantly more time reading the text, and fixated longer and more frequently than those in the repeated reading condition.  相似文献