概率是近几年高考中热点之一.因为概率的内容更能容易体现数学的本原性,它来源于生活实践,又对生活实践进行指导.新课标明确要求:概率教学的核心问题是让学生了解随机现象与概率的意义;鼓励学生动手实验;学会把一些实际问题化为古典概型.进入新课程以来,教材必修三在不讲排列组合,未定义独立事件的概念背景下,学习概率,而以前的教材处理是先讲排列组合,让学生在计算大量的排列和组合的问题以后,再引入概率内容,老师和学生将大量的时间放在了计数原 Probability is one of the hot spots in the college entrance examination in recent years because the content of probability can more easily reflect the originality of mathematics, which comes from the practice of life and the guidance of life practice.The new curriculum standard clearly requires that the core problem of probability teaching is Let students understand the meaning of random phenomena and probability, encourage students to experiment, and learn to turn some practical problems into classical types.After entering the new curriculum, the compulsory textbooks must be taught under the notion of permutation and combination and undefined independent events Probability, while the previous textbook processing is to arrange the combination of the first to allow students to calculate a large number of permutations and combinations of problems, and then introduce the probability of content, teachers and students will spend a lot of time on the original count