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学习数学的目的,在于解决实际问题,而数学问题的解决,往往需要建立数学模型。而有理数概念是同学们由小学升入初中后接触的第一种数学概念,这个概念的出现,使他们
The purpose of learning mathematics is to solve practical problems, and solving mathematical problems often requires the establishment of mathematical models. The concept of rational numbers is the first mathematical concept that the students contacted after entering primary school from primary school. The emergence of this concept made them