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本文以《异面直线所成的角》为例,从关键环节人手,分析认知概念的心理特点,探讨科学地进行概念教学的方法和途径.一、展示概念背景,培养思维的主动性思维的主动性,表现为学生对数学充满热情,以学习数学为乐趣,在获得知识时有一种惬意的满足感.导引阶段:教师与学生一起以熟悉的正方体为例,复习空间两条直线的位置关系后,请学生观察图中的几对异面直线.教师指出:从位置关系说,同为异面直线,但它们的相对位置,是否就没有区别?学生回答:有区别.教师紧接着说:既然有区别,说明仅用“异面”来描述异面直线间的相对位置显然是不
Taking “the angle formed by different lines” as an example, this paper analyzes the psychological characteristics of cognitive concepts from the key links and probes into the methods and ways to carry out the concept teaching scientifically.First, demonstrate the conceptual background and cultivate the active thinking of thinking Initiative, the performance of the students full of enthusiasm for mathematics to learn mathematics for fun, access to knowledge, there is a sense of satisfaction with the induction phase: teachers and students to familiar with the cube, for example, review the space of two straight lines After the relationship between the position, the students observe the figure of several pairs of different surface straight line.Teacher pointed out: from the positional relationship, the same as a straight line, but their relative position, there is no difference? Student answer: there are differences. Said: Since there are differences, indicating that only “Heterogeneous ” to describe the relative position between different lines is obviously not