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应用题具有一定的情节性。它的题材符合一定的生活逻辑,叙述方式也符合一定的语言逻辑,数量关系更是符合一定的数理逻辑。正是由于应用题具有诸多特点,学生理解起来比较困难。这就要求教师在课堂上要讲清分析的方法和算理,从而提高应用题教学的实效性。一、认识结构特征,抓住解题思路两步计算应用题,与简单应用题比较,有哪些区别和联系呢?简单应用题所需要的条件都是直接给出来的,两步应用题则给出一个已知条件,另一个条件隐蔽起来;简单应
Application questions have a certain plot. Its theme conforms to a certain logic of life, and the way of narration also conforms to a certain linguistic logic. The quantitative relationship is in line with certain mathematical logic. It is because of the many characteristics of the application questions, students understand it more difficult. This requires that teachers in the classroom to clarify the analytical methods and algorithms, thereby enhancing the effectiveness of the teaching of practical problems. First, the understanding of structural characteristics, grasp the problem-solving ideas two-step calculation of application problems, and simple application problems, what are the differences and contact? Simple application of the required conditions are given directly, two-step application is given Out of a known condition, another condition hidden; simple should