引导学生从不同角度认识“分散系及其分类”

Guiding Students to Learn Dispersion System from Different Angles

教学应促使学科思想方法与认识方式的形成与发展。分类是高中学生应掌握的对信息进行加工的思想方法。分类涉及标准,按照不同标准对事物进行分类,实际上是从不同角度认识事物的过程。对于化学物质,常见的认识方式有宏观、微观两类,这实际上是基于不同的尺度认识化学物质的两个角度。本文以案例分析的形式论述了分类思想的重要意义,分析了在教学中如何引导学生从不同角度认识分散系及其分类,并对将思想方法与认识方式蕴涵于具体内容的教学进行了初步的讨论。

Thinking method and understanding style should be taken shape and developed though teaching. Classification is the information processing method which should be mastered by high school students. Classification is concerned with standard. In fact, to classify in the light of different standards, is the course that people learn from different angles. The common understanding style toward chemical matters is macroscopic understanding style and microscopic understanding style. Actually,they are two angles to learn chemical matters based on different dimensions. It is discussed by cases that： 1） classification is of great importance;2） how to guide students to learn chemical matters from different angles though teaching; 3） how to teach thinking method and understanding style.