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在学习分式之前,同学们已经学习过了整式.正如有理数包括整数和分数一样,分式是不同于整式的另一种式子,分式与整式是有理式的两个组成部分.下面从四个方面对分式的主要内容作一概述,希望有助于同学们学习分式.一、分式的概念用字母表示数,使数学的研究对象跳出了具体的数的范围,让抽象的“式”进入了数学,这是一大进步.由此,数学更适合于反映数量关系.式是从数中产生的.人们对于数的认识是一个不断扩充的过程:从认识整数开始,接着认识了分数并归纳出有理数,进一步又认识了无理数并归纳出实数(在小学和初中我们已经学习了以上这些数),
Students have learned the whole before they learn fractional, just as rational numbers include integers and fractions, fractional is another type of formula that is different from integral, fractional and integral are two components of rationalism. Four aspects of the main content of the fraction to make an overview, hoping to help students learn fractional.First, the concept of fractional use of alphanumeric representation, the mathematical study of the object out of the scope of the specific number of abstract Mathematics is a big step forward, so that mathematics is more suitable to reflect the relationship between quantity and formula is generated from the number of people’s understanding of the number is an expanding process: starting from the understanding of integers , Then got to know the scores and summed up the rational numbers, further realized the irrational numbers and summed up the real numbers (we have learned these numbers in elementary and junior high schools)