在教学中,我们很多教师对教材只是局限于形式上的认识,为了追求新意,调动学生学习的积极性,往往会改编教材内容,更换学习材料。但是,由于改编的随意性,对教材的不尊重,往往会把数学知识固有的内涵丢掉,最终导致学生不能真正地理解数学知识。前一段时间我听了一节二年级的《千以内数的认识》课例,对以上的问题有了更深的体会。下面是这节课主 In teaching, many of our teachers are limited to formal knowledge of the teaching materials, in order to pursue new ideas, to mobilize the enthusiasm of students learn, often adapt the textbook content, change learning materials. However, due to the randomness of adaptation, the lack of respect for teaching materials often discards the inherent connotation of mathematical knowledge and eventually leads students to fail to truly understand mathematics knowledge. Some time ago I listened to a second grade “Lessons learned within one thousand” lesson, the above problems have a deeper understanding. Here is the class leader