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“烙饼问题”是人教版四年级上册“数学广角”的内容,是经典的策略优化问题。由于“烙饼问题”生活味浓,操作性强,已逐渐成为师生共同喜欢的教学题材。但是,“烙饼问题”学生是陌生的,而且“烙3个饼”的最佳方法与实际生活是有距离的,这给学生的探究带来了一定的困惑,甚至有教师也提出了质疑。作为一线教师,笔者多次经历“烙饼问题”教学的实践与反思,下面就大家关注的问题,谈几点个人的想法。一、“烙饼问题”的数学思想1.“烙饼问题”教学有没有在“忽悠”学生?“烙饼”这件小事,就在我们的身边,所以烙饼问题的教学倍受关注。那么生活中真会这样“烙饼”
“Pancake problem ” is the fourth edition of the PEP Edition “mathematical wide angle ” content, is the classic strategy optimization problem. Because “pancake problem ” flavor of life, strong operability, has gradually become a favorite subject of teachers and students. However, the “pancake problem” is unfamiliar to students, and the best way to “burn 3 cakes” is far away from the real life. This brings some confusion for students to explore. Even teachers Questioned. As a front-line teacher, I repeatedly experience “pancake problem ” teaching practice and reflection, the following questions we are concerned about, talk a few personal ideas. One, “pancake problem ” mathematical thinking 1. “pancake problem ” teaching is not “flicker ” student? “Pancake ” This little thing, on our side, so the problem of teaching pancakes Much attention. So life will be like this “pancake ”