论文部分内容阅读
最值问题是解析几何中的一个重要内容,也是高考命题中出现频率非常高的一个问题,它能同时考察学生的运算能力和综合分析能力,因此,它往往是教学中的一个难点,学生抓不准这类问题的思考方向,思维混乱,从而解决问题过程中耗时太多,更多的时候会碰到运算受阻,难以下笔。笔者最近教学中遇见了一道好题,经过探究,摸索出了解析几何中最值问题的一些常规有效解法。
The most value problem is an important part of analytic geometry. It is also a problem that the frequency of entrance examination is very high. It can simultaneously examine students’ computing ability and comprehensive analysis ability. Therefore, it is often a difficult point in teaching. Do not allow the thinking direction of such questions, thinking chaos, so as to solve the problem time-consuming process too much, more time will encounter the operation blocked, it is difficult to write down. I recently met a teaching problem, after exploration, worked out some of the most effective analytical geometry of the most effective solution.