一、复习要系统所谓系统复习,是指把教材中分散在各章节中的有关内容集中起来进行复习,使学生对三年来数学知识的理解有一个较完整的轮廓。例如“方程”是初中代数的核心,但方程与方程组的内容分散在第一、二、三册课本中出现,在复习时,除了把这个部分的基础知识全面复习外,还要把这些知识与技能集中整理,以利于学生系统掌握。要对比各类方程的解法,突出“转化”的思想,即通过“消元”、“降次”、“换元”等方法把待解的方程转化为学生已经会解的方程。要深化对解方程出现增根、失根的原因及检验方法的理解。此外,还要把方程、不等式、函数等知识串连 First, the system to review the so-called systematic review, refers to the textbooks scattered in the chapters of the relevant content together review, so that students understand the three years of mathematical knowledge has a more complete outline. For example, “equation” is the core of junior high school algebra, but the content of equations and equations scattered in the first, second and third textbooks appeared in the review, in addition to a comprehensive review of this part of the basic knowledge, but also the knowledge With skills concentrated, in order to facilitate students to master the system. To compare the solutions of all kinds of equations, highlight the idea of ​​“transformation”, that is, to convert the equations to be solved into the ones that students already know through “elimination,” “reduction,” and “substitution.” It is necessary to deepen the understanding of the root cause and root cause of the solution equation and the test method. In addition, but also equations, inequalities, functions and other knowledge in series