排列组合应用题的解题技巧剖析

• 作 者: 梁昊欣
• 机 构: 广东省佛山市财经学校,
• 出 处: 新课程(中旬)
• 发表日期: 2012年10期
• 关键词: 排列组合应用题 解题技巧 两个基本原理 高考命题组 帮助学生 生动有趣 解题思路 教学难点 分类计数 高中数学 学习 套用 理论 方法

排列组合应用题是高中数学的教学难点,由于它联系实际、生动有趣,一直受到各省高考命题组的青睐。排列组合的应用题变化多样,这就要求学生解题思路必须灵活,而能帮助学生解题的理论,除了两个基本原理(分类计数原理和分步计数原理)外,并无现成的统一方法可套用。本文就该问题进行归纳与分析,以期能对学习者有所启示。

Arrange the combination of application questions is difficult to teach high school mathematics, because it is linked to the actual, lively and interesting, has been favored by the provincial college entrance examination proposition group. There are so many different application questions in permutations and combinations that the students have to be flexible in their thinking. The theory that can help students to solve problems has no unified method except the two basic principles (the principle of counting and counting and the principle of step counting) Can be applied. This article summarizes and analyzes the issue, with a view to enlightenment to learners.