A Cross-Age Study of Different Perspectives in Solution Chemistry from Junior to Senior High School

This study reports on research examining what students think about aspects of solution chemistry and seeks to establish what alternative conceptions they hold in this area. To achieve this aim the researchers developed a test comprising of open-ended questions that evaluated students understanding of solution chemistry. The test was administered to 441 students selected randomly from different grades, grade 7 through grade 10. The research findings suggest that students have difficulty at comprehending the investigated concepts in solution chemistry. Alternative conceptions about the concepts of dissolution, chemical bonding, evaporation and condensation influence latter learning. Interestingly, the grade 9 students have the least percentages, except for Item 3, amongst grades in terms of alternative conception. Also, students' alternative conceptions are also stored in long-term memory and interact with each another. In the light of the findings, it can be suggested that the future research may need to focus on classifying of students' responses in terms of categories in understanding such as propositions, strings, images, episode, intellectual skills and cognitive strategies.     

An experiment for teaching chamical kinetics in chemical education

Conclusion In this study, it was found that 70% of the students understood the meaning of chemical kinetics, and it helped them analyse the data. The experimental yield of CO₂(g) obtained by the students and the yield calculated were found to match. The exercise is a good example for constructive teaching of several aspects of chemical kinetics.     

绿色化学教学策略研究

在化学教学中,通过课堂教学、实验教学、课外活动等方面,渗透绿色化学知识,使学生了解和接受绿色化学理念,树立环保意识和可持续发展观念。     

中学如何进行绿色化学教育

中学绿色化学教育已成为一种趋势,中学如何进行绿色化学教育已成为化学教育急需解决的一个问题,本文试将绿色化学教育系统化,为绿色化学教学提供依据和方法。     

“绿色化学”理念在中学教学中的渗透

从实验教学、课堂教学、教学管理及第二课堂等几方面阐述绿色化学教育的必要性和手段。     

学前教育专业教学法的课程理念与教学策略

教法课程是学生的必修课程,对教法课的课程理念与教学策略进行如下探索：教法课要与幼儿园课程相适应;突出实践性;体现整合性。在教学中采用案例教学、练习设计活动方案、运用小组合作研讨式学习、体验模拟教学、加强教法课的实习环节。     

浅谈应用化学教学中创设学习情景的策略

本文从应用化学教学中创设学习情景的重要性入手,着重阐述了在课外学习、课堂学习和实验学习三方面进行学习情景的创设策略.     

成人转换学习及其教学策略

成人转换学习在当今社会的作用日益凸显,成人只有不断地质疑、反思和转换自己的世界观、人生观或价值观,才能获得解放和发展,才能适应现实生活世界的各种变化。为此,成人教育的教学策略需要在批判性反思、人生经验的学习、教学氛围和教师角色等方面作出相应的调整和改革,但这种调整和改革要注意防止极端化和片面化。     

个别化教学理念的应然追问

个别化教学是满足学生特殊教育需要的重要途径。教育理念支配和指导着教学的态度和行为,践行个别化教学必须在思想上澄清一些模糊认识。个别化教学必须确立以生命价值为基点、以潜能发掘为目标、以教育性管理为保障的核心理念。     

应用型人才培养中案例教学的组织与实施

案例教学作为一种提高学生思考问题和解决问题能力行之有效的教学方法,在高校人才培养过程中得到了广泛应用。案例教学在高职教学中有着更大的发挥空间。基于教学实践,在高职案例教学适切性分析的基础上就高职案例教学的组织和实施进行了探讨。     

Effectiveness of the REACT Strategy on 12th Grade Students’ Understanding of the Alkenes Concept

Background: The context-based approach (CBA) is one of the approaches that allow learning to take place with real and related context, and this has increasingly become more popular.

Purpose: The purpose of this study is to investigate the effect of the REACT strategy of the CBA on remedying 12th grade students’ alternative conceptions of ‘alkenes’ and improving their conceptual understanding.

Sample: The sample of the study consisted of 20 (10 girls and 10 boys – aged 17 to 18 years) 12th grade students who enrolled in the Chemistry course in the 2014–2015 academic year in a public high school.

Design and methods: Since the current study evaluated student gains in conceptual understanding by means of a pre-test, post-test, and delayed-test scores, the study used a single group pre-posttest research design. To gather data, an Alkenes Concept Test (ACT) with 15 multiple choice items and a semi-structured interview protocol with 4 open-ended questions were used. The ACT was administered before and after the intervention as pre- and post-tests. Then, the semi-structured interview protocol was carried out. The ACT was re-administered third time to the students as a delayed-test one month after the intervention.

Results: The results showed that the REACT strategy was effective to remedy the alternative conceptions and helped students to keep new conceptions in their long-term memory one month after the implementation.

Conclusions: The REACT strategy was effective in enhancing conceptual understanding of ‘alkenes’ and helping 12th grade students to link between the scientific concepts and daily life.     

基于翻转课堂与微课的甘肃中学化学教学策略

翻转课堂与微课明确规定了中学化学课程应促进学生的全面发展、注重与理论联系实验、提高学生的化学素养等。在以学生为主体的课堂教育教学过程中,注重学生能力的培养,注重学生积极正确的情感态度价值观,是对课堂教学的基本要求。本研究针对甘肃省环县五中化学课堂,以微课的设计与制作为研究主线,以翻转课堂为教学模式,以建构主义、多元智力为理论支撑,提出了中学化学教学方面的一些教学策略。     

中学化学教学中的环境教育

环保问题已成为人类谋求生存与发展的重大课题之一,寓环保教育于中学化学教学之中,是新课程教育理念的体现。结合多年的教学实践,采用理论联系实际的方法,挖掘教材中的环保素材,结合研究性学习。开展环保专题系列活动,构建全新的教学平台,对学生进行环保教育。     

The measurement of teacher efficacy: Hong Kong primary in‐service teachers

This study sought to measure general teacher efficacy levels of in‐service primary teachers in Hong Kong. Participants included 725 Hong Kong in‐service teachers, who were invited to take part in the study. These in‐service teachers came from 28 different primary schools ranging from government, aided, private and direct subsidy schools. The Chinese version of the 12‐item Teachers' Sense of Efficacy (C‐TSE) Scale was applied to investigate the efficacy of the teachers. A factor analysis of these 12 items when male and female datasets were combined led to the extraction of only one factor. But separation of the two datasets led to the extraction of different factor analysis models. This could reflect the different perceptions that male and female teachers had about the formation of teacher efficacy. Overall, this study showed that female teachers were significantly more efficacious than male teachers. Moreover, years of teaching experience showed a weak but significant correlation to levels of general teacher efficacy. Interestingly, educational levels did not have a significant effect on the efficacy of this group of in‐service primary teachers. Overall, the C‐TSE was found to be a valid and reliable scale for measuring the efficacy levels of this particular group of in‐service primary teachers in Hong Kong.     

文化适应性教学探析——以美国多元文化教学策略为例

美国的多元文化教育经历了不同的发展阶段,目前,关注教学策略、提升少数族群学生的学业成就成为新的研究热点。在吸收人类学、哲学、社会学、民族学、心理学思想的基础上,通过对不同文化背景中学生学习风格的研究,发展了指向提升学生学业成绩、培养学生评判性思维和指向学习机会平等的教学策略。美国中小学多元文化教学策略的探索为多民族国家中针对不同文化背景的学生,建立文化适应性教学策略,实施有效教学提供了有益经验。     

义务教育化学新课程实施中的几个问题及思考

义务教育化学课程标准的修订,着重对课标中的\"实施建议\"部分进行了全面修改。从改革10年来化学新课程教学实践问题出发,从三方面对\"教学建议\"部分进行了全方位解读:全面发展观和统整观下的教学目标制定;重视和加强实验教学,精心设计和组织探究活动;发挥教学情景\"激疑\"功能,创设真实而有意义的学习情景。