专题复习是初中数学总复习中非常重要的一环,它是对学生复习过的章节内容中已有知识、技能、方法、经验的升华,对学生深化所学的数学知识,提高应试能力以及对今后的工作和生活都有着至关重要的影响。专题复习的教学比较特殊,没有固定的素材,没有新授的内容,没有确定的模式,时间短,任务重,节奏快,要求高,因此,专题复习课中有许多教学的实际问题值得大家来共同探讨。为此笔者认真拜读《一次函数:从图像中获取信息》(以下简称“案例”)这一 Thematic review is a very important part of junior high school mathematics review. It is a sublimation of existing knowledge, skills, methods and experiences in the chapters reviewed by students, deepening students’ knowledge of mathematics, improving examination ability, Future work and life have a crucial impact. Thematic review teaching is rather special, there is no fixed material, there is no new grant of content, there is no definite pattern, time is short, heavy tasks, fast paced, demanding, so there are many practical problems in the topic reviewing class worth everyone Discuss together. To this end I carefully read “a function: access to information from the image” (hereinafter referred to as “case ”) this