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小学数学第三册应用题主要是:“求几个相同加数的和”、“把一个数平均分成几份,求一份是多少”与“求一个数里包含几个另一个数”三种应用题。在一、二册已学过“求总数”、“求剩余数”和“比一个数多几或少几的数”。这些应用题之间有的结构特征相似,但解法不同;有的数量关系相同,但条件和问题互逆;还有的题目中关键词语相同,但数量关系不同……因此,在复习过程中有必要加强对比训练,让学生深刻理解和掌握应用题的结构特征、数量关系,解题方法,对照比较区别异同,提高解题能力。
Elementary mathematics book third application questions are: “seeking a few same sum of sums”, “a number of evenly divided into several, how many is a” and “seeking a number containing several other numbers” three Application questions. We have already learned in the first and second volumes of “seeking the total number,” “finding the remainder,” and “how many or fewer than a number.” Some structural features are similar between these application questions, but the solutions are different; some are the same in quantity, but the conditions and problems are mutually reversed; and in other topics, the key words are the same but the quantity is different ... Therefore, during the review process, Necessary to strengthen the contrast training, so that students a profound understanding and mastery of the structural features of the application questions, the number of relations, problem-solving methods, comparison and comparison of similarities and differences to improve the ability to solve problems.