对学生解题来说,思维起点的选择是数学解题的关键,当思维起点合理、准确时,就能得心应手,当思维起点偏离时,就容易误入歧途,陷入繁杂的计算无法自拔或走入死胡同.如何通过具体问题的分析,在分析比较中培养学生准确选择合理的思维起点,抓住解题思维突破口是思维素质的重要组成部 For students to solve problems, the starting point of thinking is the key to solve mathematical problems, when the starting point of thinking is reasonable and accurate, you can handy, when the starting point of departure from thinking, it is easy to go astray, into complex calculations can not extricate themselves or go How to pass the analysis of specific problems, to train students in the analysis and comparison to accurately select a reasonable starting point for thinking, to grasp the problem-solving thinking is an important component of thinking quality