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英国心理学家贝恩布里说过:“差错人皆有之,而作为教师,对学生的错误不加以利用则是不能原谅的.”实际教学中,不单学生会出现差错,教师也同样会出现差错.“差错”的出现符合数学知识发展的客观规律,也是数学教学中一种颇为珍贵的教学资源.对于差错,我们应提倡讨论:错在什么地方?怎样改正?哪里值得探究,从中有什么收获?等等,这样才能变废为宝.掩藏在正确结论背后的“差错”具有较强
Bainbridge, a British psychologist, said: “Everyone has their own error, and being a teacher can not be forgiven for not using his mistakes.” In practical teaching, not only students will make mistakes but teachers will be equally There will be errors. “Errors ” appear in line with the objective laws of mathematical knowledge development, mathematics teaching is also a valuable teaching resources.For the error, we should promote the discussion: what is wrong? How to correct? Where is worth? Explore, from what gain ?, and so on, so as to turn waste into treasure hidden in the correct conclusion behind “error ” has a strong