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用综合式解答两、三步计算的应用题,这是小学数学第五册应用题教学的重点。学生在解答两、三步计算的应用题时,往往习惯于分步解答,对运用综合式来解题感到困难。所以,在总复习中必须重点帮助学生复习用综合式来解答两、三步计算的应用题,培养学生的逻辑思维的能力。在帮助学生复习用综合式解答两、三步计算的应用题时,我们采取“分类整理,找出规律,先分后综”等办法,收到了较好的教学效果。一、分类整理。两、三步计算的应用题按其四则计算的方法分类,在小学三年级上
With a comprehensive solution to two or three-step calculation of the problem, which is the fifth volume of primary school mathematics teaching application focus. Students are often accustomed to answering questions step by step when solving the applied questions in two or three steps and find it difficult to solve them in a comprehensive manner. Therefore, in the general review must focus on helping students review the comprehensive answer to two or three-step calculation of the problem, the ability to develop students' logical thinking. In helping students to review the application of comprehensive answer two-step, three-step calculation of the problem, we take the “sorting out, find out the law, the first sub-enumeration,” and other methods, received a good teaching results. First, the classification finishing. Two, three-step calculation of application questions according to the four methods of classification, in the third grade