初中阶段的代数解题方法,主要有代入法、消元法、配方法、换元法、零点分段法、待定系数法等。现就其中几个技巧性较强、学生平时掌握不够熟练的解题方法,谈一点复习的体会。一、零点分段法零点分段法是解决有关绝对值、算术根问题的一种有效方法。绝对值、算术根问题历来有“学生头痛问题”的俗称,复习时,借助零点分段法,可使数形结合,从而加深学生对上述两个概念的理解。什么是零点?什么是零点分段法?由绝对值的 The methods of algebraic problem solving in junior high school include substitution method, elimination method, matching method, replacement method, zero subsection method, undetermined coefficient method and so on. Several of the techniques for solving problems that are more skillful and students usually do not master well are discussed. One, zero subsection method Zero subsection method is an effective method to solve the absolute value, the arithmetic root problem. Absolute values ​​and arithmetic root problems have traditionally been known as “student headache problems.” When reviewing, the zero-point segmentation method can be used to combine figures and forms, thereby deepening students’ understanding of the above two concepts. What is a zero point? What is a zero point method? By absolute value