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在数学教学中,碰到过几次这样的学生问题:“门高2厘米”、“妈妈的体重是50克”、“小红每分钟走1米”、“大卡车载重15千克”……如此荒诞的结果,真是让人哭笑不得,而问问其他老师,又都有这样的经历,唉!我们的学生怎么这样?上感慨之余,我们不得不反思这样一个问题:我们的数学教育究竟出了什么问题?我想:一个至关重要的原因是忽视了学生良好数感的培养,以至于许多学生的头脑中一点“数”都没有。那么如何发展学生的数感?这是课程改革中的一个新的、重要的研究课题。在多
In mathematics teaching, encountered several such student problems: “door 2 cm ”, “mother’s weight is 50 grams ”, “red walk 1 meter per minute ”, “ Truck load 15 kg ”... ... so absurd results, really dumbfounding, and ask other teachers, have had such an experience, alas! How our students? On the emotion, we have to reflect on such a QUESTION: What exactly is wrong with our math education? I think one of the most important reasons is that we neglected the training of students’ good sense so that many students do not have a single “number” in their minds. So how to develop the sense of number of students? This is a new and important research topic in curriculum reform. In more