数学课堂中的生成是指在教学活动中以即时出现的有价值、有创见的数学问题或情境.教师应以此为为契机,善于调整或改变预先的教学设计,促成有效教学. The generation in mathematics classroom refers to the valuable and creative mathematics problems or situations appearing immediately in the teaching activities.The teacher should take this as an opportunity to be good at adjusting or changing the pre-instructional design and promoting the effective teaching.