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1.教材分析和学情分析大家知道,本节课的教学重点和难点都是二项式定理及其推导方法.如何推导出二项式定理呢?教材中提供的方法是:首先从(a+b)~2=(a+b)(a+b)和(a+b)~3=(a+b)(a+b)(a+b)出发,分析它们展开式中每一项产生的过程,从而得到合并同类项后展开式中各项的形式和系数,然后再一般化得到(a+b)~n的展开式.这种方法的好处是:从学生最近学习的最熟悉的组合知识导出二项式定理,知识体系紧凑,简单且易于接受.但问题是学生是不是这样想,也就
1. Textbook analysis and academic analysis As we all know, this lesson teaching emphasis and difficulty are binomial theorem and its derivation method .How to deduce the binomial theorem? The teaching method is provided: First, from (a Starting from (a + b) (a + b) and (a + b) ~ 3 = (a + b) (A + b) ~ n, the advantages of this method are as follows: From the most familiar point of the students’ recent learning The combination of knowledge derived binomial theorem, knowledge system is compact, simple and easy to accept.But the question is whether the students think so, it