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现行教材利用简易方程把分数除法应用题转化为分数乘法应用题,解答两种类型的问题可以使用一种思路,这可以降低教学难度,降低学生学习的难度,便于他们理解。分数乘除法应用题中存在着相同数量之间的对应关系,只要学生认识了这种关系,理解其中的奥妙,也就抓住了分数应用题的主要特征,可以很好地解答分数应用题。一、理清分数乘法的关系式解答分数乘除法应用题的思路,就是以分数乘法的意义为思考的理论依据。例如,一个数乘以一个分数的意义其实就是求
The current teaching materials use the simple equation to divide the fractional division application into the fractional multiplication application. To solve the two types of problems, one way of thinking can be used, which can reduce the difficulty of teaching and reduce the difficulty of learning for students to understand. Score multiplication and division There are the same number of correspondence between the application of the problem, as long as the students recognize this relationship, understanding of the mystery, also seized the main features of fractional application questions, you can answer the fractional application problem. First, to clarify the relationship between fractional multiplication answer Multiplication and division of the answer questions, is the theoretical basis for the meaning of fractional multiplication. For example, multiplying a number by a fraction actually means