农职业学校送教下乡中农产品营销课的教学方式探讨

根据国家政策,＂送教下乡＂这一办学新模式在许多农职业学校得到推广和普及,这种办学方式把学校办到了农民的家门口,把实践课上在了田间地头及圈舍旁。这种全新的办学模式深受农民群众的欢迎,同时也极大地拓展了农业职业教育空间,有效地提高了职业教育资源配置效率,为培养新型农民、促进社会主义新农村建设发挥了良好的作用。笔者曾多次下乡开展教学活动,试结合自身的教学实践体会,对送教下乡中农产品营销课程的教学方式提出自己的观点,与同行交流互勉。     

项目型U—S—X研究性学习模式的建构与应用研究

项目型U—S—X研究性学习模式是连接高校教学与科研的有效机制．是提高学校科研水平的有效途径,也是社会加速知识技术转化为生产力的解决之道。这种模式在实施过程中应当以学生为中心,以研究项目的确立和开展为手段和依托,以学校、老师和外部教育资源作为项目实施平台。同时还要对项目加强管理：当项目涉及公共问题时,与公共部门充分沟通,努力推动项目成果转化;当项目涉及私人问题时,注意项目风险、项目谈判以及产权划分等事项。     

“合作探究式”教学的有效策略探析——基于《中国现当代文学》课程教学的实证分析

作为汉语言文学专业的核心课程,中国现当代文学课程教学已经面临不少危机,教师在教学中不断摸索改革,其中吸取和运用了"合作探究式"教学方法,但在具体教学实践中尚存在诸多问题,笔者结合多年来在《中国现当代文学》课程中开展合作探究教学改革实践的经历,创造性地提出了"合作探究式"教学法在课程教学中的有效策略。     

On the basis of source: Impacts of individual differences on multiple-document integrated reading and writing tasks

Few studies have explored how general skills in both reading and writing influence performance on integrated, source-based writing. The goal of the present study was to consider the relative contributions of reading and writing ability on multiple-document integrative reading and writing tasks. Students in the U.S. (n = 94) completed two tasks in which they read text sets about a socioscientific issue, generated constructed responses while reading, and then composed integrated essays. They also completed individual difference measures (general knowledge, reading skill, reading strategy use) and wrote independent essays to assess their writing ability. Mixed effect models revealed that general knowledge and reading skills contributed to integrated essay performance, but that once general writing ability was entered into the model, it became the strongest predictor of integrated writing scores. These results suggest the need for deeper consideration of the role of writing skills in integrated reading and writing tasks.     

通过“参与科学探究的实践”培养“参与科学的能力”——英美自然历史博物馆“公众科学”项目的实践与启示

英美自然历史博物馆开展“公众科学”项目已有30多年的历史。通过比较英美三家自然历史博物馆开展的“公众科学”项目,分析其数据质量和公众教育方面取得的成效和问题,进而归纳出这些“公众科学”项目最大的特色和优势在于“通过‘参与科学探究的实践’培养‘参与科学的能力’”。这一成功模式以“科学探究实践”为核心理念,解决了长久以来困扰科学传播界的公众“如何参与科学”以及“如何具有参与科学的能力”的问题,也为国内自然科学类博物馆的发展提供了一个新的思路。     

The Effect on Enhancing Students＇ Inquiry Abilities via Step-by-Step Open-ended Inquiry Teaching Design

The purpose of this study is to promote more open-ended inquiry activities in junior high school science lessons in the current educational system with fixed textbooks. Researchers adapted existing curriculum-based experimental activities for more open-ended inquiry ones. In addition, the whole class was provided with more opportunities to explore complete activities in limited teaching time. This study used Hazel＇s proposals of levels of inquiry. The method was to carry out the current 8th grade experiments through the step-by-step teaching material modification （from levels of inquiry 0 to 2b） and to combine the experimental teaching method with the 5E （engage, explore, explain, elaborate, and evaluate） learning cycle. After a quasi-experimental study, we compared the traditional teaching method with the step-by-step open-ended inquiry teaching one on 8th graders＇ basic and integrated science process skills and academic achievements. The study result showed that the academic achievement in the experimental group, based on the same instructional time, was not worse than that in the control group. No significant difference was found on the total scores of the basic science process skills between the two groups, but a significant difference was found on the ＂predicting＂ dimension. There was a significant difference on the total scores of the integrated science process skills between the two groups. Significant differences were found on ＂interpreting data＂ as well as ＂experiment designing＂ dimensions. Hence, the study indicated that it could enhance students＇ inquiry ability through step-by-step openly inquiry levels to change the existing curricula, which served as a reference of educational reform.     

应用型高等教育下探究式教学模式的构建与应用——以《旅游资源评价与开发》课程为例

＂学以致用＂是应用型高等教育的最终目的,实践教学探究模式是激发学生学习积极性和主动性,培养学生实践能力的有效途径和方法,本文分析了探究式教学模式的实施过程及模式类型,并以《旅游资源评价与开发》课程为例进行了具体实施的阐述。     

永恒的轮回 永恒的轮回——重读《生死场》

萧红的《生死场》是一部力透纸背的作品,它深入生命的本质,揭示其中的痛苦、艰辛、挣扎、淡漠、悲哀。回归文学的创作本质,《生死场》分别从生、死、轮回的层面出发,对于人类永恒的命运进行了深入的探索与追问。     

“科学探究”理念的重构

当前农村小学科学教师对"科学探究"理念的理解存在偏差。科学合理的"科学探究"应树立"科学探究是一种科学教学方式,但不是唯一有效的方式";"科学探究能力的培养是有层次的,小学生处于比较低的位置";"科学探究的实施过程可全可点";"科学探究的核心环节是证据说话"等四大理念。     

TM波的平面波导解法

介质波导具有损耗小和辐射小的特点,广泛应用于光通讯领域。平板波导是一种重要的平面介质波导,其中的TE波和TM波的传输特性,更是为波导器件的设计提供理论支持。本征方程是分析传输特性的重要方程,而TE波较TM波具有相对简单的电磁场连续性边界条件,其本征方程已有详细介绍。从TM波的波动方程出发,推导出三层平板波导TM波的场分布,并根据电磁场的连续性边界条件,逐步推到出它的本征方程。