在学习完高中数学教材必修五《不等式》章节后的一次单元检测中,有这样一道有关不等式恒成立的参数取值范围问题,看似比较简单的问题,同学们的答题情况并不十分理想,真正准确求解出答案的寥寥无几,究其原因:一是同学们刚学习完不等式来解决综合问题的能力还未养成;二是同学们利用分类讨论思想解决具体问题的能力比较薄弱;三是利用分 In learning high school mathematics textbooks compulsory five “inequality” chapter after a unit test, there is such a constant range of inequalities established parameter range, seemingly simple question, students answer the question is not very satisfactory, Really accurate answers to the few answers, the reason: First, students just finished learning inequalities to solve the problem of comprehensive ability has not yet been developed; second is the ability of classmates to use the discussion of ideas to solve specific problems is relatively weak; third Use points