Mathematical Modeling in the Primary School: Children's Construction of a Consumer Guide     

Lyn D. English 《Educational Studies in Mathematics》2006,63(3):303-323

This paper examines 6th grade children's local conceptual development and mathematization processes as they worked a comprehensive mathematical modeling problem (creating a consumer guide for deciding the best snack chip) over several class periods. The children and their teachers were participating in a 3-year longitudinal teaching experiment in which sequences of mathematical modeling problems were implemented from the 5th grade (10 years of age) though to the 7th grade. In contrast to traditional problem solving, mathematical modeling requires children to generate and develop their own mathematical ideas and processes, and to form systems of relationships that are generalizable and reusable. Reported here is a detailed analysis of the iterative cycles of development of one group of children as they worked the problem, followed by a summary of the mathematization processes displayed by all groups. Children's critical reflections on their models are also reported. The results show how children can independently develop constructs and processes through meaningful problem solving. Children's development included creating systems for operationally defining constructs; selecting, categorizing, and ranking factors; quantifying quantitative and qualitative data; and transforming quantities.  相似文献   

微型化学实验的开发     

李荔 《天津成人高等学校联合学报》2005,7(5):65-67

微型化学实验的开发和开展是在绿色化学理念指导下的实验创新，是对研究性学习的探索和发展，使教师由知识的传播者转化为知识的创建者和研究者，使学生由单纯记住知识转化为使用知识和理解知识，让化学实验由“照方抓药”变为“开方抓药”，发展学生创造、思维、培养其决策的能力。  相似文献   

Tracking Pre-service Teachers’ Changing Conceptions of Good Science Teaching: The Role of Progressive Reflection with the Same Video     

Benny Hin Wai Yung  Siu Ling Wong  Man Wai Cheng  Ching Sum Hui  Derek Hodson 《Research in Science Education》2007,37(3):239-259

A CD-ROM consisting of videos of two lessons by different teachers demonstrating exemplary science teaching was used to elicit, develop and track the changing conceptions of good science teaching of student teachers enrolled for the one-year Postgraduate Diploma in Education (PGDE) at several stages during the programme. It was found that the videos acted as an effective probe to elicit student teachers’ conceptions and had significant impact on those conceptions at different stages of the programme through the provision of teacher models demonstrating exemplary teaching. The experience has extended novice teachers’ awareness of alternative teaching methods and approaches not experienced in their own schooling, broadened their awareness of different classroom situations, provided proof of existence of good practices and prompted them to reflect on their current conceptions of good science teaching. Most importantly, the strategy of asking student teachers to watch the same videos on three separate occasions at different times of the course was recognized by them as a crucial element in facilitating their reflection on their changing conceptions of good science teaching. PGDE is the standard form of pre-service teacher education in Hong Kong. It provides qualified teacher status within Hong Kong. Student teachers enrolled for the PGDE have completed a relevant undergraduate degree.  相似文献   

论虚拟实践对实践观念的超越     

周甄武  余洁平 《巢湖学院学报》2005,7(5):14-18

虚拟实践是一种新的实践形式,与作为由理性认识通达现实实践必经的中间环节的实践观念相比,它有许多优越之处,从而超越了实践观念而逐渐成为新的中介.  相似文献   

少数民族心理状态对西部开发的影响     

钟慧 《承德师专学报》2003,23(1):121-123

少数民族心理研究对西部大开发有着重要的意义。少数民族心理对西部大开发进程有着促进与阻碍双重作用,其消极心理因素严重阻碍着大开发的顺利进行。应该发展教育,逐渐改变观念,激发人们内动力,加强东西部之间的人材交流。  相似文献   

当代社会主义荣辱观的实践导向     

牛晓红 《廊坊师范学院学报》2006,22(2):124-124,128

强化褒荣贬耻的社会氛围,健全干部评价监督机制,加强青少年思想道德教育是当代社会主义荣辱观的三个基本实践导向.  相似文献   

试论墨学与禅宗丛林风规的会通     

朱智武 《徐州师范大学学报(哲学社会科学版)》2003,29(2):122-125

墨学在先秦盛板一时，与儒学同尊为显学，其思想精义在中国文化发展过程中起着重大的作用。创于唐代的禅宗丛林制度就有诸多墨家思想的融会与发扬：1．墨家的“兼爱无别”与丛林的“天下一家”的仁爱精神；2．墨家的“交相利”与丛林的“自利利他”的互利思想；3．墨家的“唯贤是举”与丛林的“高僧风范”的民主作风。  相似文献   

全光纤无源耦合器件制作过程中的实践创新能力培养   总被引：1，自引：0，他引：1  

王丽  陈江博  金绍兴  何士雅 《实验技术与管理》2006,23(5):13-15

结合本科生毕业设计“全光纤光功率比耦合器件的制备”的实践过程,在理论上基于光波的耦合波方程,对熔融拉锥单模光纤耦合器的功率耦合比与拉伸长度、拉伸位置和损耗的关系进行数值模拟,使本科生在毕业设计的有限时间内掌握一种基本软件工具。通过设计过程中的实践活动,学生在指导教师的科研理念引导下,利用实验室现有的设备制作出2×2型、单窗口1×2型1550 nm和1310 nm宽带耦合器, 并完成了对制备出的光纤耦合器的光功率和光谱的检测。在实践教学过程中,突出体现了知识、能力、科研素质提高和创新能力的培养。通过无源耦合器件的制备,培养了学生的实践动手能力和科研思维能力, 为今后的学习或就业奠定了良好的基础。  相似文献   

对<数学课程标准>的几点认识与思考     

张绍康 《昭通师范高等专科学校学报》2003,25(5):61-64

阐述了对《数学课程标准》的认识以及贯彻《数学课程标准》应注意的一些问题．  相似文献   

对教育如何“面向现代化,面向世界,面向未来”的反思     

何祚庥  欧阳光明 《内江师范学院学报》2003,18(5):5-11

当前中国的现实,以及在未来20年内即将出现的态势,引起了我们对教育如何贯彻“三个面向”问题的反思：我们只有清楚地认识到科学和教育在推进中国社会经济腾飞中的决定性作用;全面把握马克思主义有关社会生产力理论的科学内涵,即科学技术和劳动者是决定生产力发展的最主要因素;准确地理解和全面掌握历史唯物主义有关教育的性质、地位及其在社会生活中的重要性,即教育既是上层建筑,又是生产力的双重属性,才能实现教育的“三个面向”。  相似文献