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一、引入概念的方法(1)实例引入实例引入是指利用学生的生活实际和所熟悉的事物及实例,从具体的感知引出概念。数学是对客观世界数量关系和空间关系的一种抽象,因此在教学中要尽可能地使抽象的数学概念用学生所接触过的、恰当的实例进行引入。(2)旧知引入旧知引入是指利用学生已掌握的概念引出新概念。数学概念之间有着非常密切的联系,许多新概念是建立在已有概念的基础上,是旧概
First, the introduction of the concept of methods (1) the introduction of examples into examples refers to the use of students’ real life and familiar things and examples, derived from the specific perception of the concept. Mathematics is an abstraction of the quantitative relationship and the spatial relationship of the objective world. Therefore, it is necessary to introduce the abstract mathematical concepts as far as possible in the teaching into the appropriate examples that the students have come across. (2) The introduction of the old knowledge The introduction of the old knowledge refers to the use of students have mastered the concept of a new concept. There is a very close relationship between mathematical concepts, many new concepts are based on the existing concepts, is the old