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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”的难点。有相当一部分题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,笔者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
As an independent branch of high school algebra textbook, permutation and combination become the difficult point of “teaching” and “learning” because of its abstractness. It is difficult for a considerable number of teachers to teach students in clearer and simpler languages. Even though the teachers think it is clear, due to the cognitive level of students, their ability of thinking is limited to a certain degree and not suitable for them . As a result, students are confused about the subject and even feel “foggy”. In response to this phenomenon, the author tried in the daily teaching process, summed up some personal ideas, to communicate with you