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坐标系背景下数形结合压轴题是学生很难越过的“坎”.它题型众多、结构复杂、知识涵盖面广、难度大,学生怕、老师累.学生要提高数形结合压轴题的解题水平,往往需要通过题海来训练突破,而老师的教学也往往是题海战术、就题论题,很难找到一个行之有效的教学策略.针对这一难题,笔者通过教学实践的摸索,探索了一个拟人化的教学策略,能有效提升学生解数形结合压轴题的解题水平.1.眼明心亮——点的坐标假设如“眼”.解答一道数形结合题一般可分为坐标假设、线段表示、图形构建、推理演算等主要步骤.学生解题时经常会出现无从下手的情况,而坐标假设通常就是学生
Coordinate system background with the number of forms combined with the finale is difficult for students to cross the It is a large number of questions, the structure is complex, knowledge covers a wide range of difficult, students are afraid, the teacher tired students to improve the number of combined with the finale The problem-solving level of the question often needs to be broken through the sea to train, and the teacher's teaching is often a problem-solving tactics, it is difficult to find an effective teaching strategy.To solve this problem, the author through the teaching practice Exploration of a anthropomorphic teaching strategy, which can effectively enhance the students solve the problem of combining numerical problems with the finale problem level.1 bright and clear eyes - point coordinate hypothesis such as "eye Problems can generally be divided into coordinate assumptions, line representation, graphics construction, reasoning and other major steps.Students often have no way to solve problems, and the coordinates of the assumption is usually students