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在解完一道题后,如果我们能认真思考以下问题:本题的解法正确吗?本题是否还有其他方法?更一般的方法?更特殊的方法?更简便的方法?本题的条件可以一般化吗?或许我们会得到一些意外惊喜.长此以往,我们的思维水准,对待问题的习惯,处理问题的能力,都将出现质的飞跃.2011年高考山东理科卷数学压轴题主要考查直线与椭圆的位置关系、弦长求法、点到直线的距离公式、二次方程根与系数的关系、利用基本不等式求最值等基础知识,同时要求学生注意对通性通法的掌握和具有较强的运算能力.虽然此题条件很
After solving a question, if we can seriously consider the following questions: Is the solution correct? Is there any other method? More general method? More special method? More convenient method? Can the conditions of this question be generalized? ? Maybe we will get some surprises. Over time, our thinking standards, the problem-solving habits, the ability to deal with problems, there will be a qualitative leap. 2011 Shandong Science Volume Math Finale questions mainly to examine the location of the line and the ellipse , The chord length method, the point-to-line distance formula, the relationship between the root of the quadratic equation and the coefficient, the use of basic inequalities to find the most basic knowledge, and requires students to pay attention to pass the general method and has a strong computing power. Although this problem conditions are