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记忆特征告诉我们,要加强对某一件事的记忆,加深对某一问题的理解,“错误”与“教训”是最为深刻的.数学教学何尝不是如此.例如,为了加深学生对等差数列的前n项和公式的理解和应用,在教学中可设计如下两个问题:问题1一个等差数列的前12项和为354,前12项中偶数项的和与奇数项的
Memory characteristics tell us that we must strengthen our memory of a certain thing and deepen our understanding of a certain problem. “Errors” and “lessons” are the most profound. This is not the case with mathematics teaching. For example, in order to deepen students’ arithmetic progression For the understanding and application of the first n terms and formulas, the following two questions can be designed in teaching: Question 1 The first 12 items in an arithmetic progression are 354, and the sum and odd items of the even items in the first 12 items.