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化学概念是化学学科最基本、最基础的内容,有效地进行化学概念教学,可以变概念的概括抽象到生动形象,同时对于学生缜密思维的培养也大有帮助.1明确概念的内涵,区分事物的现象和本质,提高思维的准确性化学概念教学中,必须让学生明确每个概念的内涵,这是区别于其他事物的本质属性.在讲解过程中,不仅学生,老师也很容易把一些事物的现象等同于事物的本质属性,或将非本质属性等同于本质属性.比如在讲解“胶体”时,“分散质粒子直径在1~100nm
The concept of chemistry is the most basic and basic content of the discipline of chemistry. Effective teaching of chemistry concepts can be abstracted and abstracted from concept to vivid image. At the same time, it is also helpful for the cultivation of students’ meticulous thinking. The Phenomenon and Nature of Improving the Accuracy of Thinking In the teaching of chemistry concepts, students must be allowed to specify the connotation of each concept. This is an essential attribute that distinguishes them from other things. In the process of explaining, not only students but also teachers can easily put things into context. The phenomenon is equivalent to the essential attribute of the thing, or the non-essential attribute is equated with the essential attribute. For example, when explaining ”colloid“, the ”dispersion particle diameter is between 1~100nm.