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一、教学目标 (一)认识和记忆 认识,熟记解答应用题的一般步骤。 (二)理解 理解一个数乘以纯小数就是求一个数的十分之几、百分之几、千分之几……是多少。扩展乘法的概念。理解一个数除以小数的具体意义。 (三)掌握 进一步掌握各种常见的数量关系,掌握分析、综合等基本方法。 进一步掌握复合应用题结构。 进一步掌握较复杂的求平均数应用题、较复杂的归一问题的特征、数量关系和解答方法。 (四)熟练 熟练地列综合算式解答三四步计算的一般应用题、较复杂的求平均数应用题和较复杂的归一应用题。
First, the teaching objectives (A) understanding and memory awareness, memorize the answer to the general steps of the application. (B) to understand Understanding a number multiplied by pure decimal is to find a few tenths, a few percent, a few thousandths ... ... is how much. The concept of extended multiplication. Understand the meaning of a number divided by the decimal. (C) master the further grasp of a variety of common quantitative relations, master analysis, synthesis and other basic methods. Further grasp the structure of composite application questions. Further grasp the more complicated average application problems, the more complex characteristics of the normal problem, the number of relations and answers. (D) proficiency in the comprehensive formula for calculating three or four steps to calculate the general application of the problem, the more complicated average application problems and more complex application problems.