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小学数学课堂教学中经常用到数学反例。所谓数学反例就是否定的数学例证,为了防止或否定学生对于数学知识的错误认识而列举的一些数学事例。它是数学课堂上的“调节器”。运用数学反例对学生的智力活动能起定向纠错、提炼升华的作用,并维持数学课堂教学按既定的路线进行。课堂教学中要有运用反例的意识。现就学生在理解和运用知识的过程中何时出示数学反例谈几点看法。
Primary mathematics classroom teaching is often used in mathematical examples. The so-called math counter-examples are negative mathematical examples, in order to prevent or deny students misunderstanding of mathematical knowledge and cited some mathematical examples. It is the “regulator” in the math class. The use of mathematical anomalies on the intellectual activities of students can be directed error correction, distillation of the role of distillation, and to maintain mathematical classroom teaching according to the established route. Classroom teaching should have the awareness of using counterexamples. Now on the students in the process of understanding and applying knowledge in the process of producing mathematics counterexample several views.