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中学化学教学大纲明确指出:“要重视基本概念的教学”,“使学生清楚地、准确地理解基本概念,对于学好化学是十分重要的”。由于中学化学基础知识主要是由化学基本概念组成的,所以加强基本概念教学,对完成化学教学任务,提高教学质量,是极为重要的。 化学基本概念是人们对物质及其化学现象的本质属性的反映,是指在化学科学中较为基础而具有广泛应用的概念。运用这些化学基本概念把元素、化合物知识、化学原理等有机地结合成一个整体。掌握概念的过程有一系列的特点,基本概念不可能是仅仅依靠背记定义的方法就能掌握的,必须依靠学生积极的认识活动。为此,应该充分认识学生形成概念的心理特征,探索基本概念教学过程的一般规律。下面浅谈中学化学基本概念教学的一般过程。
The chemistry syllabus of the middle school clearly states: “It is important to pay attention to the teaching of basic concepts.” “It is very important for students to understand the basic concepts clearly and accurately in order to learn chemistry well.” As the basic knowledge of chemistry in secondary schools is mainly composed of the basic concepts of chemistry, it is very important to strengthen the teaching of basic concepts to complete the tasks of chemistry teaching and improve the quality of teaching. The basic concept of chemistry is a reflection of the essential attributes of matter and its chemical phenomena. It refers to the concept that is widely used in chemical science. Use these basic concepts of chemistry to organically combine elements, chemical compounds, and chemistry into a single unit. Grasping the concept of the process has a series of characteristics, the basic concept can not be relied on only the definition of the method can be mastered, we must rely on the students to actively recognize the activities. To this end, students should fully understand the psychological characteristics of the concept of formation, and explore the general law of the basic concept of teaching process. Below to talk about the basic concept of chemistry in the general process of teaching.