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几何解题的系统结构是问题条件→知识和方法→问题目标,解题过程是根据问题条件,利用有关的知识和方法,进行有计划、有目的、有步骤的逻辑推理活动。要顺利完成这一活动,首要的是选择合理的思维起点,才能有效地组织好逻辑推理活动,顺利完成由条件到目标的解证过程.若找不到或者找错了思维起点,逻辑推理就难以展开,似盲人骑瞎马,乱碰乱闯,解题就会受阻。因此选择合理
The system structure of geometric problem solving is the problem condition→knowledge and method→problem objective. The problem solving process is based on the problem condition and utilizes related knowledge and methods to carry out planned, purposeful, and stepwise logical reasoning activities. To successfully complete this activity, it is first and foremost to choose a reasonable starting point of thinking in order to effectively organize logical reasoning activities and successfully complete the process of verification from the condition to the goal. If we cannot find or find the wrong starting point, logical reasoning is Difficult to start, like a blind man riding a Hummer, indiscriminate chaos, problem solving will be blocked. Therefore choose reasonable