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每道试题的解法并非是无源之水,而是有根可寻,根植于课本,源于“四基”。为了引导学生及时寻找到解题思路,进一步提升他们发现问题、提出问题、分析问题、解决问题的能力,笔者以一道中考试题为例,从“细研条件,追寻知识根源”的角度进行解题分析,追寻解法的自然生成。1试题呈现(2015年绍兴市中考数学)在平面直角坐标系中,O为原点,四边形OABC的顶点A在x轴的正半
Each test solution is not passive water, but there is root to find, rooted in textbooks, from “four base ”. In order to guide students to find solutions to problems in time, to further enhance their ability to find problems, ask questions, analyze problems and solve problems, the author takes a middle school exam as an example, from the perspective of “fine research conditions, search for knowledge root ” Solve the problem analysis, search for the natural generation of solution. 1 questions presented (2015 Shaoxing City entrance math) rectangular coordinate system in the plane, O as the origin, quadrilateral OABC vertex A positive in the x-axis