共查询到20条相似文献，搜索用时 15 毫秒
1.
Deepak Dhar 《Resonance》2010,15(6):514-525
All of us have read about solid, liquid and gaseous states of matter in school. Are these the only states of matter? What distinguishes different states of matter from each other? 相似文献
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Reasoning with Atomic-Scale Molecular Dynamic Models 总被引：1，自引：4，他引：1
The studies reported in this paper are an initial effort to explore the applicability of computational models in introductory science learning. Two instructional interventions are described that use a molecular dynamics model embedded in a set of online learning activities with middle and high school students in 10 classrooms. The studies indicate that middle and high schools students can acquire robust mental models of the states of matter through guided explorations of computational models of matter based on molecular dynamics. Using this approach, students accurately recall arrangements of the different states of matter, and can reason about atomic interactions. These results are independent of gender and they hold for a number of different classroom contexts. Follow-up interviews indicate that students are able to transfer their understanding of phases of matter to new contexts. 相似文献
3.
摘要：多元化的20世纪音乐为人们所反思：什么是音乐?怎么音乐?音乐为什么?音乐怎么了?任何声音、任何组织方式，不管是否表现什么、甚或什么声音也没有都可以构成音乐作品。这确实为音乐、为大众带来了新思想、新观念，改变了我们的音乐理念。 相似文献
4.
多元化的20世纪音乐为人们所反思:什么是音乐?怎么音乐?音乐为什么?音乐怎么了?任何声音、任何组织方式,不管能否表现什么,甚至什么声音也没有都可以构成音乐作品。这确实为音乐、为大众带来了新思想、新观念,改变了我们的音乐哲学观。 相似文献
5.
In this study, we investigated young children's (ages 7–10) spontaneously constructed or naive understanding of the particulate nature of matter prior to any formal instruction in the domain. Fifteen students were interviewed concerning their understanding of the macroscopic and microscopic properties of the states of matter (solid, liquid, and gas), as well as their macro/microscopic understanding of phase changes and dissolving. Children expressed ideas about states of matter which were categorized as macrocontinuous, macroparticulate, or microparticulate. Nine children (60%) stated beliefs about matter which were macroparticulate in nature, and three (20%) expressed microparticulate beliefs about matter. The three remaining children (20%) held macrocontinuous beliefs about matter. Furthermore, a substantial number of the children provided explanations of properties and processes which were consistent with those beliefs. These children's beliefs about matter were not fully and consistently developed across the spectrum of substances from continuous solids to particulate solids to liquids to gases. We speculate that children first develop local frameworks particular to different classes of substances and then slowly expand these frameworks to include a wide range of substances and their properties, as well as such processes as melting and freezing. © 1999 John Wiley & Sons, Inc. J Res Sci Teach 36: 777–805, 1999 相似文献
6.
Keith Morrison 《Compare》2006,36(2):249-264
This paper explores the sensitivities of conducting educational research in small states and territories, where the very act of conducting research, aside from its purposes or focuses, is itself a sensitive matter. The paper takes a ‘critical case study’ of Macau and examines cultural, educational, political, micro‐political, interpersonal and practical issues, overlaid by characteristics of Chinese culture, that must be factored into the planning and conduct of research in the territory. It suggests that compromises and trade‐offs have to be made in educational research in small states and territories, and argues that researchers must anticipate a range of problems in advance, and, through ingenuity, networking and sensitivity, overcome them. The magnification of sensitivities in small states and territories contributes to their special educational ecology; investigating these is frequently an interpersonal as well as a research matter. 相似文献
7.
文章分析了目前对哲学基本问题的各种理解，认为把哲学基本问题表述为“物质和意识的关系”不能成立。提出哲学基本问题的正确表述应是：世界的本原是什么?阐释了这种表述既符合哲学的研究对象和哲学史。又符合逻辑和哲学的功能。这种表述可以使哲学不只是研究人的思维与世界其它事物的本末关系。而是真正去研究整个世界；可以改变哲学史的研究现状，使哲学派别不一定只划分为唯物和唯心两大派；有利于哲学发挥应有的作用，指导人们认识和改造世界。 相似文献
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美国公立大学录取政策变革:百分比计划 总被引：1，自引：0，他引：1
周海涛 《清华大学教育研究》2007,28(6):89-94
20世纪90年代后,随着美国一些州和高等教育机构对新生录取时实施平权法案问题争论的展开,德克萨斯州、加里福尼亚州和佛罗里达州出台并施行了百分比计划。这一录取政策为什么被提出?主要内涵是什么?产生了怎样的影响?其中蕴含哪些启示?本文先在评述"百分比计划"的背景与内容的基础上,分析了其效应和可引以为鉴的经验。 相似文献
10.
Ronald J. Raven 《科学教学研究杂志》1967,5(3):216-223
Evidence favoring the conceptual sequence ?momentum→conservation of matter→proportional use of mass and velocity→velocity”? is presented. Theoretical issues can be resolved via well-designed research! 相似文献
11.
The remarkable physical properties of liquid crystals have been exploited for many uses in the electronics industry. This
article summarizes the physics of these beautiful and complex states of matter and explains the working of a liquid crystal
display. 相似文献
12.
Lorrie A. Shepard 《Educational Measurement》1990,9(3):15-22
What explanations have been provided for spurious test score gains? Are states and districts narrowing the curriculum and teaching the test? What effect does teaching the test have on the norms themselves? What alternatives must be sought to protect the integrity of instruction and the validity of scores? 相似文献
13.
黄晋耀 《宁德师专学报(自然科学版)》2011,23(2):218-221
数学课堂的有效性是每一位数学教师要关注并思考的课题,在新课程改革的背景下,显得尤为重要.从教学备课、教学目标、学生参与、优化课堂、营造环境等方面阐述了实施课堂有效性的策略和技巧. 相似文献
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唐诗创作一直与歌诗传唱保持着密切的关系,歌诗创作从审美观念、主题、题材、体裁、语言等方面对诗人的创作提出了要求,而诗人为了适应这些要求而进行的创作自然会影响到其风格的形成。本文就是对这一关系所作的分析,以期为人们从音乐角度来考察唐诗提供一些参考。 相似文献
16.
Comparing State and District Test Results to National Norms: The Validity of Claims That "Everyone Is Above Average" 总被引：1，自引：0，他引：1
Are all states and nearly all districts claiming that their students are above the national average? If so, are the test results “inflated and misleading?” What are the factors that contribute to the abundance of “above average” scores? 相似文献
17.
Leigh Burstein 《Educational Measurement》1990,9(3):23-26
How can the use of norm-referenced tests be changed to lead to more accurate reporting of results? What kinds of information should states and districts be using to contextualize their reports of test results? 相似文献
18.
To what extent have state departments of education developed policies for testing limited English proficiency students with standardized achievement tests? What are some of the relationships between the development of these testing policies and the establishment of bilingual education in the states? What work still lies ahead in standardized achievement testing of limited English proficient students? 相似文献
19.
Harold J. Sheridan Ph.D. 《Religious education (Chicago, Ill.)》2013,108(1):15-19
What is happening to college students in terms of “the things that matter most,” the goals and purposes apart from which everything else they do loses its point? How are colleges and universities deliberately or indirectly influencing these “values”? These are crucial questions for American education on which some light is cast in the following articles. 相似文献
20.
《Higher Education Quarterly》1978,32(2):237-249
Book reviwed in this article Book reviwed in this article What's the matter with bourgeois culture? Literature in the Market Place PER GEDIN Faber and Faber A cautionary tale from the mixed economy Slater Walker: An Investigation of a financial phenomenon, CHARLES RAW. ‘What's so good about bad?’ Education, Nihilism and Survival. David Holbrook . Darton, Longman & Todd. Who calls the tune? The Politics of the Media, JOHN WHALE. Fontana. 相似文献