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例题的作用不仅是加深学生对概念、定理、公式的理解,教给学生解题的技能和技巧,更重要的是应通过例题教学,使学生学会思考问题的方法,提高学生分析问题和解决问题的能力。为了实现这个目的,教师在例题教学时,应该透彻分析例题,阐明思想方法,用思维规律启示引导解题过程,引导学生从多方面进行深入细致的观察和剖析,挖掘例题潜力,使学生思维得到充分训练。 一、以例带类,训练学生的求同思维能力 笛卡尔说:“我所解决的每一个问题都将成为一个模式,以用于解决其它问题”。课本例题的作用便是如此。课本例题具有典型性,是一类问题的代表,所以解决问题的方法往往可以为我们提供一个解题模式。
The role of examples is not only to deepen students’ understanding of concepts, theorems, and formulas, but also to teach students problem-solving skills and skills. More importantly, it is necessary to teach students through example problems so that students can learn how to think about problems and improve students’ problem analysis and problem solving. Ability. In order to achieve this goal, teachers should thoroughly analyze the examples, clarify the methods of thinking, use the way of thinking to guide the problem-solving process, guide students in various aspects to conduct in-depth and detailed observation and analysis, and explore the potential of examples to make students think Full training. First, with examples of class, training students’ ability to seek common thinking Descartes said: “Every problem I solve will become a model to solve other problems.” The role of textbook examples is the same. Textbook examples are typical and representative of a class of problems, so solving problems can often provide us with a solution model.