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问题是数学的心脏,好的数学问题更是学好数学的灵魂.教师总想让学生做题时又快又对,不出错.但前提必须是题目本身正确无误,然而在某些教辅用书或者考试题中,常出现一些错误的试题,且错误的原因不易被发现,这给教学带来了不必要的麻烦.对于错误,如果我们能准确辨别、及时筛选,努力挖掘“错误”根源,纠正错误,那么我们就能做到少走弯路,变缺憾为完美.
The problem is the heart of mathematics, a good mathematical problem is to learn the soul of mathematics. Teachers always want students to make the question quickly and correctly, without error. But the premise must be the title itself is correct, but in some supplementary books or Exam questions, there are often some wrong questions, and the reasons for the error is not easy to find, which brings unnecessary trouble for teaching. For the error, if we can accurately identify and timely screening, and strive to tap the root of “error” , Correct mistakes, then we can do less detours, change the imperfections for the perfect.