“磨课”即集中教研组或备课组组员的智慧,结合平时积累的教学经验,针对某一篇课文进行反复推敲的过程。磨课的关键点在于“磨教材”。本期编发的这组文章,以《滴水穿石的启示》为例,对说理文从文本解读到教学设计,最后归纳综述了如何运用恰当的策略、方法进行教学,目标明确,特点鲜明。希望对老师们有所启发。 “Lesson ” that is focused on the wisdom of teaching and research group or lesson preparation team members, combined with teaching experience usually accumulated, for a certain text repeated scrutiny process. The key point of grinding class lies in “grinding teaching material”. This issue of this series of articles, with “enlightenment of dripping stones” as an example, from the text interpretation to teaching design, and finally summarizes how to use the appropriate strategies and methods of teaching, clear objectives and distinctive features. Hope to inspire the teachers.