《有机化学》精品课程的建设与实践

本文介绍了在《有机化学》精品课程建设中,如何从建设高素质的教师队伍、编写适合农业院校的教材、结合多媒体技术改革教学方法、建立适合素质教育的考核方法以及有机化学实验教学、独立开课、独立考核、建设精品课程网站、运用先进的网络技术和远程教育来弥补课堂教学的不足等方面,加强教学软硬件建设和改善,对传统有机化学教学进行改革的做法。     

A feature analysis of regional classroom teaching in the trend of interactive instruction

The overall appeal of ICT in education in China is promoting deep integration of ICT technology with teaching. From a regional point of view, intelligent terminals, such as laptop and tablet, were integrated into classroom, in Beijing, Shanghai and other developed cities. Interactive media equipment (whiteboards, interactive TVs and iPad etc.) have been applied in classroom teaching with deeper and broader ways. However, regarding the pedagogy, it is still a challenge to apply ICT technology for the revolution and further development of classroom instruction properly. In order to evaluate the quality of classroom teaching in an ICT environment and support teachers teaching with ICT technology in daily life practices, this study explored, measured and analyzed the features of classroom instruction in ICT environment, according to the sample lessons from a district in Beijing. Based on our prior research findings on Pad-enhanced teaching pedagogy, the “TPOCME Deep Classroom model” was proposed. 66 sample lessons that applying the TPOCME model was analyzed. The study found that student’s Higher-order Thinking, Classroom Participation and Meaningful learning all have qualitative improvement compared with the traditional classes. The progress concerning the integration of ICT in education and teaching changes the relations between teaching and learning in traditional classes. This study also proved the effectiveness of the proposed model and provided a basis for further development. It was an exploration of promoting ICT-enabled classroom teaching pedagogy in China.     

论陈云“以人为本”发展观及其实践意义

陈云强调社会主义经济要“有利于人民”,提出“三个主体、三个补充”的社会主义经济发展模式,指出建设规模必须同国力相适应、制定经济计划必须做好综合平衡、国民经济要按比例发展、要依靠科学技术发展社会经济、经济发展要与人口、资源、环境相协调。对我国社会主义经济建设起了不可估量的作用,为我党树立“以人为本”的科学发展观提供了理论基础,对正在进行的全面建设小康社会具有现实的指导作用。     

视力残疾学生和普通学生触错觉对比实验研究

目的:探讨视力障碍儿童触错觉规律。方法:选用垂直-水平错觉图 形和缪勒-莱依尔错觉图形对视力残疾儿童和普通儿童进行错觉对比实验 研究。结果:视力残疾儿童触错觉略高于普通儿童,经差异性显著检验,两 类儿童的触错觉没有显著性差异。错觉因感觉通道及图形不同而存在差异。 视力残疾儿童触错觉、普通儿童的视错觉和触错觉与年龄、性别没有关系。     

用"生态柱"来探究自然界硫循环的课外实验

自然界的物质循环能为生命提供营养和能量，理解自然循环对于全面理解生物世界的机制是很重要的。在现行的中学生物学教材中，有关物质循环的内容多涉及碳循环、氮循环，而对硫循环的叙述非常简要。硫是构成某些氨基酸、维生素和辅酶的基本成分，对于大多数生物的生命至关重要，在地球上也是广泛分布，储量丰富，所以了解硫循环对学生来说是非常必要的。“生态柱”课外实验，能让学生了解硫循环的途径和微生物在其中的作用，同时能把生物多样性、化学、进化、微生物学和生态学等主题的概念融会贯通，为学生学习这些相关的生物学知识提供了一个很好的课外实践机会。     

中餐菜名英译法初探

中餐菜肴品种繁多，文化内涵丰富。这给中餐菜名的英译造成了很大的困难。本文试图从分析中餐菜名的构成方式入手，归纳总结了翻译中餐菜名的通用方法：直译法，意译法和音译法。并就一些中餐菜名英译进行具体探讨。     

论弗罗斯特的"句子--声音"的理论意义

弗罗斯特在华兹华斯诗歌语言传统的基础上创造性地提出了"句子--声音"概念,形成自己独特的作诗法,文章对他的"句子--声音"进行了深入分析,并分类阐述了它在诗歌中的作用.     

R/S方法和Hurst指数试验在重庆市户籍人口自然变动分析中的应用

根据重庆市1985—2013年的户籍人口自然变动指标统计数据,选择户籍人口出生率、死亡率、自然增长率等指标参数,运用R/S分析法研究重庆市未来户籍人口自然变动指标的变化趋势;并通过Hurst指数试验预测重庆市未来户籍人口自然增长率的变化情况;参考气候倾向率的概念,计算重庆市户籍人口自然变动倾向率。研究表明:重庆市未来户籍人口变动指标的变化趋势与过去29年的变化有很好的自相似性。未来10年,户籍人口出生率将降低1.102‰;户籍人口死亡率将增加0.066‰左右;户籍人口自然增长率将降低1.168‰左右。根据户籍人口增长率的20年Hurst指数试验结果表明,重庆市户籍人口自然增长率降低趋势的持续性很强,期间没有转折,没有升高降低的突变点。通过对未来户籍人口增长趋势的预测,为人口调控政策提供决策依据。     

谈饭店的个性化服务

本文从理论上阐述了饭店个性化服务的内涵.指出了饭店实施个性化服务具有满足宾客的个性需求、造就高素质的员工队伍、优化饭店的服务质量、强化饭店的竞争优势和形成饭店的品牌特色的重要意义.同时从实用性的角度,提出处理好个性化服务与规范化服务的关系、建立和健全一整套客史档案、实行以人为本的管理模式、建设一支高素质的员工队伍、保证足够的员工数量、形成饭店的特色文化是实现饭店个性化服务的有效途径.     

Modeling Partial Knowledge on Multiple‐Choice Items Using Elimination Testing

Single‐best answers to multiple‐choice items are commonly dichotomized into correct and incorrect responses, and modeled using either a dichotomous item response theory (IRT) model or a polytomous one if differences among all response options are to be retained. The current study presents an alternative IRT‐based modeling approach to multiple‐choice items administered with the procedure of elimination testing, which asks test‐takers to eliminate all the response options they consider to be incorrect. The partial credit model is derived for the obtained responses. By extracting more information pertaining to test‐takers’ partial knowledge on the items, the proposed approach has the advantage of providing more accurate estimation of the latent ability. In addition, it may shed some light on the possible answering processes of test‐takers on the items. As an illustration, the proposed approach is applied to a classroom examination of an undergraduate course in engineering science.