所谓课堂留白,是指教师在教学过程中,出于一定教学目的的需要,有意暂时中断一下讲课,在时空、内容上造成明显的空白,使学生的情感、思维等动态因素在“空白”中趋向深入。苏联教育家苏霍姆林斯基曾说过:“有经验的教师往往只是微微打开一扇通向一望无际的知识原野的窗子。”留白,就是摒弃填鸭式的讲解,留给学生一定的空间,让学生充分发挥他们的想象。中学生正处于思维能力发展的关键时期,积极开展丰 The so-called classroom blank, refers to the teachers in the teaching process, for a certain purpose of teaching purposes, intended to temporarily interrupt the lecture, in time and space, resulting in a clear blank, so that students’ emotions, thinking and other dynamic factors in the “blank ”In the trend of deepening. Sukhomlinski, a Soviet educator, once said: “Experienced teachers tend to just slightly open a window that leads to an endless stream of knowledge.” To keep a blanket is to abandon the cramming-type explanation and leave it to students Space for students to give full play to their imagination. Middle school students are at a critical stage of their development of their thinking ability and are enthusiastic about developing abundance