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化归思想有两个方面的特点,下面分别进行分析.一、层次性运用化归思想,我们能够调用其他学科的知识,解决数学方面的问题,这就是化归思想的层次性.例1现有600名学生参加夏令营,将600名学生按照001、002…600的数字编号,运用系统抽样得到一个样本,容量为50,随机抽得号码为003.这600名学生,编号001-300住在1号营区,301-495在2号营区,496-600在3号营区,那么三个营区
There are two aspects of the thought of the return to the nature of the following analysis: First, the level of the use of the return of thought, we can call the knowledge of other disciplines to solve mathematical problems, and this is the level of thought to return. There are 600 students participating in the summer camp, 600 students in accordance with the numbers 001,002 ... 600, the use of systematic sampling to get a sample, a capacity of 50, a random number was 003. The 600 students, number 001-300 live in Camp 1, 301-495 Camp 2, 496-600 Camp 3, then three camps