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The aim of this paper is to describe a novel modeling and simulation package, connected chemistry, and assess its impact on students' understanding of chemistry. Connected chemistry was implemented inside the NetLogo modeling environment. Its design goal is to present a variety of chemistry concepts from the perspective of emergent phenomena—that is, how macro-level patterns in chemistry result from the interactions of many molecules on a submicro-level. The connected chemistry modeling environment provides students with the opportunity to observe and explore these interactions in a simulated environment that enables them to develop a deeper understanding of chemistry concepts and processes in both the classroom and laboratory. Here, we present the conceptual foundations of instruction using connected chemistry and the results of a small study that explored its potential benefits. A three-part, 90-min interview was administered to six undergraduate science majors regarding the concept of chemical equilibrium. Several commonly reported misconceptions about chemical equilibrium arose during the interview. Prior to their interaction with connected chemistry, students relied on memorized facts to explain chemical equilibrium and rigid procedures to solve chemical equilibrium problems. Using connected chemistry students employed problem-solving techniques characterized by stronger attempts at conceptual understanding and logical reasoning. 相似文献
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1 1=2? No!1 1=无限!这是日本超人气二人男子组合Chemistry的目标。他们希望自己并非普通的组合,只是单纯的1 1=2,而是如同化学药剂一样,一旦相遇可以产生巨大耀眼的变化,将自己身体中不可思议的潜能发挥至极点。 相似文献
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《情境化学：应用化学到社会》（Chemistry in Context-Application Chemistry to Society）（以下简称《情境化学》）是由美国化学会组织编写，McGraw-Hill公司1994年出版的供美国高中生使用的化学教材，亦可作为文科生的选读教材。自第一版问世以来，经过几次修订，第四版已经发行。本文研究的是2000年修订的第三版。 相似文献
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温室气体是怎样捕获热量并使我们的地球维持在一个相对适宜的温度区间?在某种程度上,这个问题的答案在于分子如何对具有能量的光子做出反应,这是个复杂的话题。不过即便如此,我们也可以提供足够的基本知识,让你能理解温室气体如何在大气层中起作用。同时,我们会剖析一些气体为什么不捕获热量。 相似文献
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He Peng Zheng Changlong Li Tingting 《International Journal of Science and Mathematics Education》2022,20(7):1337-1359
International Journal of Science and Mathematics Education - The purpose of this study is to develop and validate an instrument for measuring Chinese Chemistry Teachers’ Perceived... 相似文献
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《Journal of Higher Education Policy & Management》2012,34(1):61-64
Although many women now hold qualifications that in the past guaranteed an academic appointment, few jobs are available in universities. In an unrestrained labour market, the sex ratio of academics in Australian universities is unlikely to change much over the next 10 to 15 years. The likely impact of affirmative action policies and practices is discussed. 相似文献
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This paper reports on a teacher’s and his students’ responsiveness to a new tetrahedral-oriented (Mahaffy in J Chem Educ 83(1):49–55, 2006) curriculum requiring more discursive classroom practices in the teaching of chemistry. In this instrumental case study, we identify the intentions of this learner-centered curriculum and a teacher’s development in response to this curriculum. We also explore the tensions this teacher experiences as students subsequently respond to his adjusted teaching. We use a Chemistry Teacher Inventory (Lewthwaite and Wiebe in Res Sci Educ 40(11):667-689, 2011; Lewthwaite and Wiebe in Can J Math Sci Technol Educ 12(1):36–61, 2012; Lewthwaite in Chem Educ Res Pract. doi:10.1039/C3RP00122A, 2014) to assist the teacher in monitoring how he teaches and how he would like to improve his teaching. We also use a student form of the instrument, the Chemistry Classroom Inventory and Classroom Observation Protocol (Lewthwaite and Wiebe 2011) to verify the teacher’s teaching and perception of student preferences for his teaching especially in terms of the discursive processes the curriculum encourages. By so doing, the teacher is able to use both sets of data as a foundation for critical reflection and work towards resolution of the incongruence in data arising from students’ preferred learning orientations and his teaching aspirations. Implications of this study in regards to the authority of students’ voice in triggering teachers’ pedagogical change and the adjustments in ‘teachering’ and ‘studenting’ required by such curricula are considered. 相似文献
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Introductory Chiemistry(《化学入门》)是美国一本高中化学教科书。该书Steve Russo、Mike Silver主编、由Pearson Education Press出版，至今已有两版问世。编著者的基本目标是帮助学生认识化学的本质。改善学生学习化学的态度和方法，训练学生解决实际问题的能力，其编写理念与风格颇具特色，并有一定的借鉴价值。 相似文献
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Zuhao Wang Shaohui Chi Kaiyan Hu Wenting Chen 《Journal of Science Education and Technology》2014,23(2):211-226
Teachers’ knowledge and application of model play an important role in students’ development of modeling ability and scientific literacy. In this study, we investigated Chinese chemistry teachers’ knowledge and application of models. Data were collected through test questionnaire and analyzed quantitatively and qualitatively. The result indicated as follows: (1) Chemistry teachers’ knowledge of some known chemistry models was limited; (2) Chemistry teachers preferred those models that were vivid when they chose models; (3) Teachers’ modeling process was incomplete; (4) Teachers adopted a general pattern when applying models in chemistry teaching. The findings have implications for teacher education. 相似文献
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化学英语是北师大附属实验中学校本课程科技英语课程体系的一个分支。为了将各个学科的学习与英语学习紧密结合，我们提出了科技英语的课程目标，并在该目标的指引下陆续展开了课程教材的编写和课程实践。化学英语作为该课程体系中的重要组成部分，最先完成了教材的编写，并以该教材为蓝本进行了课堂实践，效果良好。这些课堂实验获得了大量的新鲜素材，为教材的进一步编写和后续课程的开发积累了大量经验。本文旨在对整个课程的开发和课堂实践进行简要介绍，并试图站在新课程开发的角度反思上述实践，探讨教师在新课程开发中的位置以及教师怎样伴随新课程的开发而成长。 相似文献
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This study aimed to examine the written arguments developed by college freshman students using the Science Writing Heuristic approach in inquiry-based general chemistry laboratory classrooms and its relationships with students’ achievement in chemistry courses. Fourteen freshman students participated in the first year of the study while 19 freshman students participated in the second year of the study. Two frameworks, an analytical and a holistic argument framework, were developed to evaluate the written argument generated by students. The analytical framework scored each argument component separately and allocated a Total Argument score while the holistic framework evaluated the arguments holistically. Three hundred and sixty-eight samples from 33 students were evaluated. Stepwise regression analyses revealed that the evidence and the claims–evidence relationship components were identified as the most important predictors of the Total Argument and the Holistic Argument scores. Students’ argument scores were positively correlated with their achievement, as measured by the final grade received for the general chemistry laboratory and the general chemistry lecture course. 相似文献
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基于教材的章节编排、学科知识的深度与广度对《Essential Chemistry》进行整体介绍;从教材栏目设计、情境创设、活动安排、测评方式及角度分析该教材的特点,结合实践和思考提出教学建议,以期为初中化学教学提供参考。 相似文献
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Emilia Afonso Nhalevilo 《Cultural Studies of Science Education》2012,7(2):447-450
This paper is a response to Maria Andree’s paper. Andree tells in the paper how mistakes in practical lessons may be critical
events to change students’ attitudes in regard science. While traditionally mistakes in practical lessons could obligate students
to repeat the experiment in order to get the ‘right result’ in the paper we have a good example how we can use the incident
to potentiate students’ participation. In my response I illustrate how transferable is what Andree speaks about but I put
forward further reflections about the traditions that may act as impediment for students’ participation. I thus suggest that
the critical paradigm should be a component in reflecting about science classroom practices in order to alter the traditions. 相似文献
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Sevgi Aydin Nurdane Aydemir Yezdan Boz Ayla Cetin-Dindar Oktay Bektas 《Journal of Science Education and Technology》2009,18(6):518-534
The present study aimed to evaluate whether a chemistry laboratory course called “Laboratory Experiments in Science Education”
based on constructivist instruction accompanied with concept mapping enhanced pre-service chemistry teachers’ conceptual understanding.
Data were collected from five pre-service chemistry teachers at a university in Ankara by means of a concept test and semi-structured
interviews. Results showed that pre-service teachers had some alternative conceptions about chemistry topics. Moreover, using
constructivist instruction accompanied with concept maps as an instructional tool was effective to promote conceptual understanding.
Participants thought that concept maps were useful especially in recognizing the relation between different chemistry concepts. 相似文献
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对化学系实验班双语课程《Analytical Chemistry》的课堂教学实践、教学特点和教学效果进行了总结,通过问卷调查的形式对分析化学双语教学的教学模式及存在问题进行分析,探索＂荣誉课程＂教学中有利于提高教学效果的教学手段和方法. 相似文献
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作者通过两周的学习交流发现,新加坡 Chemistry A＇level 考试大纲比大陆高考大纲更重视化学的学科系统性、重视化学原理及其应用、重视化学的基本思想、重视化学实验目的方法而不是操作细节,使得化学更像“理科”。在这些方面,学生需要理解、掌握的基本概念比我们多,知识面广内容深。但是考试比较直白、容易,真正学会了就容易考好。考纲和考题渗透着为学生的终身学习打好基础的理念,其核心内容是促进学生学科理解的。 相似文献
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M. C. K. Aghadiuno 《Research in Science & Technological Education》2013,31(2):123-133
Abstract A causal model is proposed in order to explain secondary students’ achievement in chemistry; the seven predictor variables used in the explanation are: students’ attitude towards chemistry, understanding of science, scientific attitude, traditional cosmological world‐view, cognitive style, teachers’ attitude towards the teaching of chemistry and understanding of science. Some 460 students chosen by means of stratified cluster sampling and their 25 teachers make up the student and teacher samples, respectively. The numerical values of all the variables are obtained and their intercorrelations computed. Path analysis procedure is applied to the data to estimate the coefficients of the structural equations of the proposed model. The results of the analysis indicate that the hypothesised model is tenable. The seven predictors directly account for 21?6% of the variance in the criterion; their indirect effect is 8?4%. The implications of the findings for chemistry instruction, teacher education and curriculum development are discussed. 相似文献
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王旭 《中学化学教学参考》2000,(6)
Ｉｎｔｅｒｎｅｔ中学化学教育资源极其丰富,而通用资源搜索引擎如Ｙａｈｏｏ,Ｓｏｈｏｏ所索引的信息资源面向大众的居多,所索引的中学化学教育信息量较少,而大量的中学化学教育资源没有链接上。这给中学化学教育工作者带来了极大的不便。现介绍一国外中学化学专业站点———ＨｉｇｈＳｃｈｏｏｌＣｈｅｍｉｓｔｒｙ250 Ｌｉｎｋｓ。该站点由澳大利亚已退休的Ｗａｒｗｉｃｈ高中化学教师ＳａｍｖｅｌＥ.Ｗｅｎｇｅｒ先生创办和维护,于1996年9月12日开始运行。该站点链接包括元素周期表、化学教学法、化学竞赛、物质性质和状态、化学史等共2… 相似文献
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从课程目标、内容选取、设计思路、呈现方式、习题等方面介绍了新加坡化学0水平教材Chemistry Insights中有关氧化还原反应内容的设计。 相似文献