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叶澜教授指出:“课堂教学是一个动态生成的过程,再好的预设,也无法预知课堂教学中的全部细节。”因此,课堂上教师要善于抓住师生互动过程中的反思话语,以此巧妙改变教学预案,把课堂上学习的主动权还给学生,从而“刷新”出有效的数学课堂。一、“单击”满足式互动,“升级”探索空间案例:一位教师在教学“乘法分配律”时,出示“7×45+7×55”后提问:“观察这道题,相同的因数是什么?有没有另外的算法?可以怎样计算简便,简便在哪里?”
Professor Ye Lan pointed out: “Classroom teaching is a dynamically generated process, no matter how well a preset is, and all details in classroom teaching can not be predicted.” Therefore, in class, teachers should be good at grasping the reflection in the interaction between teachers and students Words, in order to cleverly change the teaching plan, the initiative to return to the classroom students, so that “refreshed ” out of an effective math class. First, the “click ” to meet the type of interaction, “upgrade ” to explore space Case: a teacher in the teaching “multiplication distribution law ”, produce “7 × 45 +7 × 55 ”Look at this question, the same factor is what? There is no other algorithm? Can be calculated easily, where is the easy? "