不同的人从不同角度赏析同一节课,会有不同的收获与见解。一节课中,其教学环节的亮点与缺憾也时常并存。笔者反复观摩“正比例函数的图像”的教学视频,现结合教材、教学过程,基于五个问题谈谈自己的认识与思考,并提出一点困惑,期望得到指教。1认识与思考问题1:如何化抽象为直观?教学目标对学生来说常是抽象的。本节课开始, Different people appreciate the same lesson from different angles, and there will be different gains and insights. In one lesson, the highlights and imperfections of their teaching sessions often coexist. The author repeatedly observed the video of the “image of proportionality function”. Now he combines teaching materials and teaching process, and talks about his own understanding and thinking based on five questions, and gives him a bit of confusion. He hopes to get advice. 1 Understanding and Thinking Question 1: How to make abstraction as intuition? Teaching goals are often abstract for students. This lesson starts