目前我国中专由于生源滑坡,数学课的难度大大增加了,必须更加注重教学方法,使教学过程更加符合学生的认识规律。在教学设计与实际教学中,贯彻循序渐进原则就显得尤为重要。 At present, due to the students landslide in our secondary school, math class difficulty has increased greatly, we must pay more attention to teaching methods, so that the teaching process more in line with the understanding of the law of students. In teaching design and practical teaching, it is very important to carry out the principle of gradual and orderly progress.