中考数学复习-第1章-数与式-第4课时-分式教案VIP免费

ideological and theoretical qualities and practical working ability, and strive to build a contingent of league cadres with positive work style and high quality. Hold a regular meting of the party secretary every fortnightly, arrange the work of the regiment, fedback the student information. Focus on training junior high school, junior high school secretary of the regiment branch to enable them to raise A firm political conviction, diligent and diligent learning spirit and practical and innovative work style.第一单元 数与式第 4 课时 分式教学目标【考试目标】1.了解分式和最简分式的概念2.会利用分式的最基本性质进行约分和通分，会进行简单的分式加、减、乘、除运算.【教学重点】1.了解分式的相关概念，并且熟记分式有意义的条件.2.了解分式的基本性质及其相关概念.3.掌握分式的运算法则.教学过程一、知识体系图引入，引发思考通过上述知识体系图，复习回顾实数的相关知识，为本节课的学习打下基础.二、引入真题，归纳考点【例 1】（2024 年金华）要使分式有意义，则 x 的取值应满足 (D) A．x＝－2 B．x≠2 C．x＞－2 D．x≠－2【解析】此题考查了分式的概念，要使分式有意义则分式的分母不能为 0，x+2≠0，即x≠-2，故选 D 选项.【考点】考查了对分式概念的理解，记牢分式有意义的情况.【例 2】（2024 年无锡）分式可变形为 (D) A. B．－ C. D．－【解析】此题考查了分式的变形，运用了分式的基本性质，此题难度不高，选择 D 选项.【考点】考查分式的基本性质.Strengthen the team connection, strengthen the knowledge education among the students (especially the first grade students), and promote the formation of good school spirit with the influence of the league members. All League branches should start with recommending outstanding students as the development objects of the League, take amateur league schools as the basis, conscientiously do a good job in the work of pre-league education, league membership education, League members' vanguard exemplary consciousne...