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案例描述:数学是抽象的,生活是具体的,怎样的操作才是真正有效的呢?下面以“找次品”(人教版五年级数学下册第134页~135页例题1、2)一课为例谈谈笔者对此的实践与反思。一、相声引路,导入新课师:(左手拿秤盘,右手敲着秤盘,走上讲台)同学们,我像老师吗?生1:你不像老师,像个卖糖的。生2:你不像老师,你像一个卖菜的。……师:哼!看来,我真的不像老师啊!那就算老师中的次
Case Description: Mathematics is abstract, life is specific, what kind of operation is really effective? Here to “find defective ” (PEP fifth grade mathematics volumes in the first 134 to 135 pages of example 1, 2) a lesson as an example to talk about the author's practice and reflection on this. First, crosstalk lead the way, into the new class division: (left hand weighing pan, right hand tapping the pan, onto the podium) classmates, I like a teacher? Health 1: you are not like a teacher, like selling sugar. Health 2: You are not like a teacher, you are like selling vegetables. Teacher: Well! It seems that I really like the teacher ah! Even if the teacher in the times