分类是自然科学乃至社会科学研究中经常用到的一种思想,无论在日常生活还是科学认识活动中,都具有十分广泛的应用。在解决数学问题的过程中,有时要把问题按照一定的原则或标准分为若干类,然后逐类进行分析、讨论,得出结果。运用分类讨论能够克服思维的片面性,对数学问题进行整体把握,使思维过程更加缜密。针对不同年段的学生,教师应有序引导。一、低年级适时渗透,逐步形成意识对于低年级的学生而言,在解决数学 Classification is a kind of thought frequently used in the research of natural science and social science. It has a very wide range of applications both in daily life and in scientific cognition. In the process of solving mathematical problems, sometimes it is necessary to classify the problems into several categories according to certain principles or standards, and then analyze and discuss them in a class-by-class manner to obtain the results. The use of category discussion can overcome the one-sidedness of thinking, the overall grasp of mathematical problems, the thinking process more meticulous. For different years of students, teachers should be ordered to guide. First, the timely penetration of lower grades, and gradually form awareness For the lower grades of students, in solving mathematics