有些数学问题,由于综合性强,数量关系错综复杂,或者思维跨度过大,给学生解题造成一定的困难.而有的教师,往往自认为简单,埋怨学生解题能力差,这样会使学生的学习积极性受到极大的伤害,不利于后续教学.因此,适当地给题目设置一些阶梯,可以降低 Some math problems, due to the complexity of complex, the relationship between the number of complex, or thinking span is too large, causing some difficulties for students to solve the problem, while some teachers, often think they are simple, complain about the ability of students to solve problems, it will make students Learning enthusiasm is greatly harmed, is not conducive to follow-up teaching.Therefore, appropriate to set the subject a number of steps, can reduce