论文部分内容阅读
启发式教学是目前处于试验阶段的一种改革教学法,笔者几年来在启发式教学上花过一些功夫,有一些肤浅体会。现在一种普遍的说法是:“启发式”教学只适用于优等生。但我认为只要处理得当,“启发式”对各类学生都是适用的,对于学习有困难的更应注意启发性教学。根据这一思想,本人最近在初中三年级中基础相当差的一个班里又进行了一次试验课,效果较好,现介绍给同行,以求赐教。课题;圆周角(初中几何第二册) 一、概念的引入 1 提问:什么叫圆心角?指定一个学生在黑板上画出一个圆心角(如图1∠BOC)并引导学生找出它的特征:顶点在圆心上。
Heuristic teaching is a kind of reform teaching method that is currently in the experimental stage. The author has spent some time on heuristic teaching for several years, and has some superficial experience. Now a common saying is: “heuristic” teaching is only applicable to the students of honor. But I think that as long as it is handled properly, “heuristic” is applicable to all kinds of students, and for those who have difficulties in learning, they should pay attention to enlightening teaching. According to this idea, I recently conducted a test class in a class with a very poor foundation in the third grade of junior middle school. The results were better and are introduced to my colleagues for instruction. Topics: Circumferential angle (secondary geometry booklet) I. Concept Introduction 1 Question: What is the central angle? Specify a student to draw a central angle on the blackboard (Figure 1 BOC) and guide the student to find out its characteristics. : The vertex is at the center of the circle.