动态测试实验教学软件的开发

利用可视化编程平台VB6,开发出了一套动态测试实验教学软件。供有关专业的学生在学习理论力学课程的实践环节中使用,介绍了该软件的基本功能结构。     

Self Reflections of Undergraduate Students on Using Web-Supported Counterintuitive Science Demonstrations

Analysis of self-reflections of undergraduate education students in a project involving web-supported counterintuitive science demonstrations is reported in this paper. Participating students (N?=?19) taught science with counterintuitive demonstrations in local elementary school classrooms and used web-based resources accessed via wireless USB adapters. Student reflections to seven questions were analyzed qualitatively using four components of reflection (meeting objectives/perception of learning, dynamics of pedagogy, special needs accommodations, improving teaching) deriving 27 initial data categories and 12 emergent themes. Overall the undergraduates reported meeting objectives, engaging students in pedagogically relevant learning tasks including, providing accommodations to students with special needs, and gaining practice and insight to improve their own teaching. Additional research is needed to arrive at generalizable findings concerning teaching with web-supported counterintuitive science demonstrations in elementary classrooms.     

An Explanation for the Difficulty of Leading Conceptual Change Using a Counterintuitive Demonstration: The Relationship Between Cognitive Conflict and Responses

Bringing successful teaching approaches for stimulating conceptual change to normal classrooms has been a major challenge not only for teachers but also for researchers. In this study, we focused on the relationship between cognitive conflict and responses to anomalous data when students are confronted with a counterintuitive demonstration in the form of a discrepant event. The participants in this study were 96 secondary school students (9th grade) from S. Korea. We investigated students?? preconceptions of motion by administering a written test. After the exam, we presented a demonstration that may have conflicted with the ideas held by students. We then investigated the relationship between students?? cognitive conflict and responses to anomalous data by using a Cognitive Conflict Level Test (CCLT). Results showed that cognitive conflict initiated the first step in the process of conceptual change. Anxiety was an especially crucial component of cognitive conflict, affecting the relationship between cognitive conflict and students?? responses. In addition, superficial conceptual change was found to be the most common response.     

哈密顿(Hamilton)动力学讨论

本文指出现有“理论力学”教程分析力学部分关于哈密顿动力学讨论中存在的不妥性,并讨论一般完整动力学系统的哈密顿正则方程和哈密顿原理.     

有理函数的动力学

本文研究了有理函数的动力系统,给出了斥性周期点乘子的上界估计。实例表明,所得结论是精确的。     

论政治现代化的动力

文化动力、经济动力、政治动力、社会动力和国际动力构成了政治现代化的复合动力结构。这种结构怎样即各种动力之间的关系形成了相互促进的正相关关系还是相互阻碍的负相关关系对政治现代化进程会产生重要影响。     

软件自动化测试方案研究

提出了具有可复用性、独立性和容错性的自动化测试实现方案,改进了公共测试用例的分解和共享技术,减少了测试用例的管理和维护成本。     

试论面向对象测试中的组装测试技术

长期以来，我们总是参考现向过程的测试方向来测试利用面向对象技术开发的软件，效果并不理想，尤其是组装阶段的测试。因为类具有继承性（Inheritance)和多态（Polymorphism)／动态联编性（Dynamic binding)，并不等于面向过程设计中的模块。因此，要取得更好的测试效果，只有找到与之相适应的面向对象的组装测试技术方可。     

Test 9

Part One: Quick Responses Please make a quick response to the sentence you will hear. 1. Would you turn down the radio a little bit? The music is too loud.