帮助学生掌握科学概念,有很多途径和方法。比较常见、也很重要的,是通过实例,进行分析和归纳。概念是客观事物的一般特性和本质属性的反映。这种特性和属性,是从大量同类事物中抽象概括出来的。概念的掌握,必须建立在有关事物的知识的基础上。因此,在学生掌握一个新概念的时候,如果教师不提供 There are many ways and ways to help students master the concepts of science. More common, but also very important, is through examples, analysis and induction. Concept is the reflection of the general characteristics and essential attributes of objective things. This trait and attribute is abstracted from a large number of similar things. The mastery of concepts must be based on the knowledge of the things concerned. Therefore, when the student masters a new concept, the teacher does not provide it