论文部分内容阅读
《数学教学》91年第5期黄良福同志《评说参数讨论题的双重功能及解题策略》一文,阐述了解决这类问题的一些常用方法和技巧,值得一读。然而,有些参数题之所以能成为分域讨论题,可能是由于我们在解题方法上选择不当所致。如果我们能优化思维方法,从多角度、全方位去审视参数。变换解题方法,则可简化讨论过程甚至完全回避分域讨论,从浩繁的分域讨论的困境中解脱出来。本文试图通过实例谈谈参数讨论题的解脱策略。
Comrade Huang Liangfu Comrade Huang Liangfu’s “Two Functions of Parametric Discussion Questions and Strategies for Solving Problems” in “Mathematics Teaching”, Issue 5, 91, explains some common methods and techniques for solving such problems and are worth reading. However, the reason why some parameter questions can become topical discussion questions may be due to our improper choice of methods. If we can optimize the way of thinking, examine the parameters from multiple angles and in all directions. Changing the method of solving problems can simplify the discussion process or even completely avoid the discussion of the sub-domains, freeing them from the dilemma of voluminous sub-domain discussions. This article attempts to talk about the liberation strategy of parameter discussion questions through an example.