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正确地理解应用题题意,是弄清数量关系,解答应用题的关键。应用题的类型多,结构比较复杂,小学生在理解应用题题意时,常常会遇到这样或那样的困难。为帮助学生正确地理解题意,弄清数量关系,除应让学生掌握“分析法”和“综合法”两种根本方法外,还可以教给学生一些辅助方法。 一、倒过来想想。 有的应用题顺着已知条件思考,不容易弄清数量关系。如果倒过来想想,数量关系就明显了。例如:甲堆煤比乙堆煤多12吨,乙堆煤比甲堆煤少1/4。甲乙两堆煤各重多少吨?这道题,我们把“甲堆煤比乙堆煤多12吨”倒过来想想,就是“乙
Correct understanding of the meaning of application questions is to clarify the relationship between the number of questions and answers to the key. Many types of application questions, the structure is more complex, primary school students in understanding the meaning of the application questions often encounter this or that difficulty. In order to help students understand correctly the questions and clarify the quantitative relationship, students should be able to teach students some auxiliary methods in addition to providing students with the two basic methods of “analytical method” and “comprehensive method.” First, turn around and think about it. Some questions apply thinking along the known conditions, not easy to understand the relationship between quantity. If you think about it in reverse, the relationship is clear. For example: A pile of coal is 12 tons more than B pile, B pile coal less than a quarter of coal. A and B two tons of coal each weighing how many tons? This question, we put “A pile of coal more than B 12 tons of coal” upside down think about it, "B