“画线段图解决问题”是苏教版《数学》三年级上册的教学内容。在此之前,学生在二年级时已经接触过两步计算解决问题,也已初步掌握解题方法,这里是第一次学习画线段图解决问题。日常教学中,由于部分教师对教学重难点把握不准,教学时有的把“和倍、差倍”也作为对所有学生的要求,陷入教学的误区;有的过分强调线段图的画法,导致学生对于自己本来能够理解的方法都失去方向了,教学内容不能及时完成。 “Draw line drawings to solve the problem ” is the teaching content of the Sujiao version of “mathematics” third grade. Prior to this, students in the second grade have come into contact with the two-step calculation to solve the problem, has also initially mastered the problem-solving method, here is the first time learning to draw line drawings to solve the problem. In daily teaching, because some teachers are not sure about the difficulty of teaching, some teachers sometimes put “” and “times” or “poor times” as the requirements for all students into the misunderstanding of teaching; some overemphasize the drawing of line drawings Act, leading students to have their own way to understand the direction of the lost, the teaching content can not be completed in time.