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繁分式是含有分式除法的算式的另一种书写形式。繁分式的化简是繁分式教学的主要内容。学生常常认不清哪个分式是这个繁分式的分子或分母,而无从入手,造成错误。如何解决这个问题呢?谈谈个人的体会: 一、使学生在正确理解繁分式的意义的基础上,着重弄清楚繁分式的分数线及其上、下各主分线,分辨出繁分式的分子和分母的组成形式,以便决定化简的步骤和方法,为繁分式的化简做好准备。首先让学生弄清书写最长、并且与等号对齐的那条分数线叫主分线,它决定着繁分式本身的分子和分母,既表示括号,也标志
Fractional formulas are another form of writing that contains formulas for fractional division. The simplification of categorization is the main content of the intensive teaching. Students often do not recognize which fraction is the numerator or denominator of this categorical formula, but cannot start with it and cause mistakes. How to solve this problem? Talk about personal experience: First, enable students to correctly understand the meaning of the categorical formula, and focus on clarifying the categorical score line and the main points on the next and the next, to distinguish between different points. The form of the numerator and denominator of the formula, in order to determine the steps and methods for simplification, to prepare for the simplification of the fragmentation. First of all, let students find out which score line is the longest and aligned with the equal sign. It is called the main line. It determines the numerator and denominator of the dichotomy itself. It represents both parentheses and signs.