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在小学数学教学中,多步应用题的教学始终是个难点。学生难学,教师难教,其原因是由于多步应用题数量关系复杂,思路曲折。解决“难教,难学”这一问题的因素甚多,这里只谈讲授多步应用题之前准备题的设计。一、例题缩减式把应用题的某一个条件去掉,就可以成为准备题。如,在教学以“归一”数量关系发展起来的三步应用题,就可以把例题中的某
In primary school mathematics teaching, multi-step application of teaching is always a difficult task. Students difficult to learn, teachers difficult to teach, the reason is due to the complexity of the number of multi-step application questions, ideas twists and turns. Solve the “difficult to teach, difficult to learn,” a lot of the problem of this factor, here only talk about teaching multi-step application questions before the design of the problem. First, the sample reduction type to remove some of the conditions of the application, you can become ready to question. For example, teaching in order to “number one ” the number of relations developed three-step application questions, you can put the example of a