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排列组合作为高中代数课本的一个独立分支,因为极具抽象性而成为“教”与“学”难点。有相当一部分题目教者很难用比较清晰简洁的语言讲给学生听,有的即使教者觉得讲清楚了,但是由于学生的认知水平,思维能力在一定程度上受到限制,还不太适应。从而导致学生对题目一知半解,甚至觉得“云里雾里”。针对这一现象,我在日常教学过程中经过尝试总结出一些个人的想法跟各位同行交流一下。
As an independent branch of high school algebra textbooks, permutations and combinations become the difficult point of “teaching” and “learning” because of their abstraction. A considerable part of the subject is difficult to teach students to use clear and concise language to listen to, and some even if the teacher felt clearly, but due to the cognitive level of students, thinking ability to a certain extent, is not yet adapted to . As a result, students are confused about the subject and even feel “foggy”. In response to this phenomenon, I tried to summarize some personal ideas in the daily teaching process to share with your colleagues.