化学教学中的数形结合问题研究
发布时间：2019-02-19 19:21
【摘要】：数形结合是使抽象思维和形象思维相互作用,实现数量关系与图形性质的相互转化,将抽象的数量关系和直观的图形结合起来研究问题的一种思想与方法,在科学研究中,具有普遍性。在查阅了大量文献资料的基础上,本研究概括了数形结合思想在数学、物理、生物、地理乃至语文、历史等学科的应用概况,并详细阐述了数形结合思想在化学教学中的体现。通过问卷调查与教师访谈的方式,探查了对于数形结合的思想和方法的认识及运用情况。调查结果表明,仅是在化学解题中用到数形结合的方法；学生“以形助数”的能力要远远强于其“以数解形”的能力。为了充分发挥数形结合思想的教育价值,本研究将基于数形结合方法指导下的化学教学的表征策略划分为概率图、统计图表以及解析几何曲线方法三大类,并利用大量的案例加以阐释,完善了教师对数形结合只用于解题的片面认识。将教师在数形结合方面的碎片化的认识进行了系统阐述。
[Abstract]:The combination of numbers and shapes is a kind of thought and method that makes abstract thinking and image thinking interact, realizes the mutual transformation between quantity relation and graphic nature, and combines abstract quantitative relation with intuitionistic figure to study the problem. It is universal. On the basis of consulting a great deal of literature, this study summarizes the application of the idea of the combination of numbers and shapes in mathematics, physics, biology, geography and even Chinese, history and so on, and expounds in detail the embodiment of the thought of combination of numbers and shapes in the teaching of chemistry. By means of questionnaire survey and teachers' interview, this paper probes into the understanding and application of the thought and method of the combination of number and form. The results of investigation show that only the combination of numbers and forms is used in solving chemical problems, and the students' ability of "using form to help number" is much stronger than that of "solving shape by number". In order to give full play to the educational value of the idea of combination of numbers and forms, this study divides the representation strategies of chemistry teaching based on the combination of numbers into three categories: probability diagram, statistical chart and analytic geometry curve method. And use a large number of cases to explain, improve the teacher's one-sided understanding that the combination of numbers and forms is only used to solve problems. Teachers in the number-shape combination of fragmentation of the understanding of the system.
【学位授予单位】：天津师范大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：G633.8
本文编号：2426789
[Abstract]:The combination of numbers and shapes is a kind of thought and method that makes abstract thinking and image thinking interact, realizes the mutual transformation between quantity relation and graphic nature, and combines abstract quantitative relation with intuitionistic figure to study the problem. It is universal. On the basis of consulting a great deal of literature, this study summarizes the application of the idea of the combination of numbers and shapes in mathematics, physics, biology, geography and even Chinese, history and so on, and expounds in detail the embodiment of the thought of combination of numbers and shapes in the teaching of chemistry. By means of questionnaire survey and teachers' interview, this paper probes into the understanding and application of the thought and method of the combination of number and form. The results of investigation show that only the combination of numbers and forms is used in solving chemical problems, and the students' ability of "using form to help number" is much stronger than that of "solving shape by number". In order to give full play to the educational value of the idea of combination of numbers and forms, this study divides the representation strategies of chemistry teaching based on the combination of numbers into three categories: probability diagram, statistical chart and analytic geometry curve method. And use a large number of cases to explain, improve the teacher's one-sided understanding that the combination of numbers and forms is only used to solve problems. Teachers in the number-shape combination of fragmentation of the understanding of the system.
【学位授予单位】：天津师范大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：G633.8
【参考文献】
相关期刊论文 前1条
1 朱鹏飞;马宏佳;杜静;;一种有效的实验研究模式——利用传感技术对吸热反应热效应的实验研究[J];化学教育;2009年12期
，本文编号：2426789
本文链接：https://www.wllwen.com/zhongdengjiaoyulunwen/2426789.html
