高考数学考试120分钟的时间限制,要求学生必须合理地分配时间,通常我们按“小题小做、大题精做”的原则分配客观试题和主观试题的时间.由于向量本身有几何意义,因此很多老师和学生在解决向量问题时常采用“数形结合”的方法,笔者认为“定性”的问题用“数形结合”的方法较好,而“定量”的问题用“数形结合”不一定快捷.针对向量的一些 The time limit of 120 minutes for math exams requires students to allocate time reasonably, and usually we allocate time for objective questions and subjective questions according to the principle of “making small problems and doing fine things.” Since the vector itself has a geometric meaning , So many teachers and students often adopt the method of “combination of number and form” in solving vector problems. The author thinks that the problem of “qualitative” is better with “combination of number and form” The problem with “number combination ” is not necessarily fast. Some for the vector