Effects of a Problem-based Structure of Physics Contents on Conceptual Learning and the Ability to Solve Problems     

Carlos Becerra-Labra  Albert Gras-Martí  Joaquín Martínez Torregrosa 《International Journal of Science Education》2013,35(8):1235-1253

A model of teaching/learning is proposed based on a ‘problem-based structure’ of the contents of the course, in combination with a training in paper and pencil problem solving that emphasizes discussion and quantitative analysis, rather than formulae plug-in. The aim is to reverse the high failure and attrition rate among engineering undergraduates taking physics. A number of tests and questionnaires were administered to a group of students following a traditional lecture-based instruction, as well as to another group that was following an instruction scheme based on the proposed approach and the teaching materials developed ad hoc. The results show that students following the new method can develop scientific reasoning habits in problem-solving skills, and show gains in conceptual learning, attitudes and interests, and that the effects of this approach on learning are noticeable several months after the course is over.  相似文献   

The influence of scaffolded computerised science problem solving on motivational aspects     

Zvia Fund  Nir Madjar 《International Journal of Science Education》2013,35(18):2265-2291

ABSTRACT

The current study focused on scaffolding programmes, including cognitive and meta-cognitive components, for science problem solving in a computerised learning environment to identify their unique effects on aspects of student motivation. Using expectancy-value theory as a conceptual framework, the current study focused on two motivational aspects: intrinsic value and perceived cost. Four scaffolding components were identified (structural, reflective, subject matter and enrichment) and used in different configurations to construct four scaffolding programmes ranging from low support (Enrichment) to partial support (Operative and Strategic) to full support (Integrated). The participants were seventh-grade students (N?=?458) sampled from 15 different classes in 3 middle schools. The classes were randomly assigned to the five treatment groups (four ‘scaffolding programmes’ and one control). The intervention was conducted over approximately 6 months as part of the regular class curriculum. The first phase of the study was based on self-report surveys distributed twice to all participants, and the second phase was based on observations of a sub-sample (N?=?145). The findings indicated that the integrated group demonstrated the most adaptive patterns of motivation. Specifically, the integrated group was the only group that showed no decline in intrinsic value or increases in perceived cost. Both the strategic and integrated groups had higher levels of observed willingness to invest effort and reports of intentional learning when using the scaffolding software. The common feature of these groups is the reflection component, which implies that reflection and its combination with subject matter have positive effects on motivation.  相似文献   

Managing the Change From On-Site to Online: Transforming ESL courses for teachers     

Liying Cheng  Johanne Myles 《Open Learning》2013,28(1):29-38

In Canada, all regular K-12 teachers face the challenge of teaching both native and non-native English speaking students. Consequently, working with students who use English as a second language (ESL) has become everybody's business, irrespective of whether they are teaching language or mathematics, at elementary or secondary levels. As a result, it is essential for in-service teachers to gain knowledge and develop skills in working with ESL students. Teaching English as a second language (TESL) courses have been delivered traditionally at the Faculty of Education at Queen's University through on-site training and with opportunities for working with ESL students. These courses, however, are now delivered online to teachers in different locations across the province and even in other parts of the world. This paper addresses the challenges of converting the on-site courses to an online format.  相似文献   

校园网的安全问题及应对机制     

何敏 《科技广场》2008,(12)

随着校园网规模的扩大和应用的深入,校园网中的安全问题也逐步暴露出来。本文就当前校园网中存在的安全问题进行了综合分析,并提出相应的解决方案。  相似文献   

高职院校物流专业实践教学的问题与对策   总被引：1，自引：0，他引：1  

WANG Rui 《陕西国防工业职业技术学院学报》2008,(4)

高职院校物流专业教学过程中,实践教学的问题值得关注。本文从高职院校的特点出发,讲述了物流专业实践教学的必要性、存在的问题及对策。  相似文献   

"问题树分析法"--区域发展研究的有效分析方法   总被引：4，自引：0，他引：4  

甄霖 《科研管理》2000,21(5):103-107

本介绍了问题树分析法的概念,理论要点,特点,分析步骤,模型结构及在区域发展研究中的重要性。并结合具体实例,探讨了在区域发展规划中如何应用该方法来发现问题,分析问题之间的相互关系,有针对性地对区域发展作出总体规划与决策。  相似文献   

大学生体育保健小组实践中的问题及对策分析     

何童铃  吴明灵  刘雨  秦山  王亚东  魏丹 《当代体育科技》2020,(12):177-178

通过分析保健小组实践中的问题发现,保健小组存在人手不足且女生成员偏少、按摩对象结构集中化且变动较大、组员诊断能力不足、工作量较大、缺乏内部管理机制、专业能力有待提升、耗材消耗量大及仪器的使用寿命过短等问题。提出扩招组员尤其是女生组员、加大宣传力度、加强沟通与管理、缩短开放时间、提高知识与技能水平、普及节约意识、建立相应的赔偿制度等对策。  相似文献   

论先秦儒家对人口问题的思考     

王洪泉 《宜宾学院学报》2006,6(5):60-62

以孔、孟、荀为代表的先秦儒家对人口的问题进行了思考和探索。在人口再生产、人口结构、人口质量三方面,他们都提出了自己的见解和主张。  相似文献   

当前经济责任审计中存在的问题及对策     

吴小琴 《温州职业技术学院学报》2005,5(3):26-28

经济责任审计作为对领导干部权利制约的有效方法，作为选拔任用干部的必要程序，作为反腐倡廉的重要举措，正日益受到高度重视。针对当前经济责任审计中存在的问题，经济责任审计工作应坚持“积极稳妥，量力而行，提高质量，防范风险”的指导原则，以进一步规范和完善经济责任审计。  相似文献   

高校建筑工程专业教育存在的问题及对策     

钱大行  冒红 《洛阳工业高等专科学校学报》2007,17(4):68-70

分析了现阶段高校师资队伍和建筑工程专业教育状况和存在的问题,提出了解决师资队伍建设、教材建设、理论教学和实践教学中出现问题的对策,以提高高校建筑工程专业的办学水平和办学层次.  相似文献