“同课异构”是一种教研方式,它是针对同一节课的内容,有不同的教师根据自己的理解,对教材进行挖掘,分析和整理,精心备课并上课堂展示.由于不同教师认识程度不一样,所以,课堂教学中所展示课的结构,内容风格,所采取的教学方式和策略都各有千秋,从而“同课异构”让同一个内容构成了一节节令人耳目一新拍案叫好的精彩课堂.同课异构可以帮助广大教师在不同课堂中比较,在比较中不断反思,在反思中不断进步, “Lesson heterogeneous ” is a way of teaching and research, it is for the same lesson content, different teachers according to their own understanding, teaching materials mining, analysis and finishing, elaborate lesson preparation and class display due to different Teachers have different levels of understanding, so the structure, content style, teaching methods and strategies adopted in classroom teaching are different, so that the same content constitutes a refreshing festival Shooting good applauded class. Heterogeneous class can help the majority of teachers in different classroom comparison, continuous reflection in the comparison, continuous improvement in reflection,