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在复习确定二次函数解析式这部分知识时,我们首先引导学生清楚了解二次函数图象的形状、位置与其解析式之间的相互联系。在此基础上,结合例题师生共同分析关于确定二次函数解析式的四种类型题目的特点和解题方法,进而启发学生根据这四种类型选编题组并加以分析解答。这么做对学生掌握基本思路和方法,开阔眼界和发展智力很有好处。学生对这种方法很感兴趣,他们从课本、杂志、资料上收集题目,比较异
When reviewing the knowledge of the quadratic function analytical formula, we first of all lead students to clearly understand the relationship between the shape, position, and analytical form of quadric function images. On this basis, students and teachers of the example problems are jointly analyzed to determine the characteristics of the four types of problems in the analytic function of the quadratic function and the methods for solving the questions, thereby inspiring students to select and edit the questions according to these four types of questions and to analyze and solve them. Doing so will provide students with basic ideas and methods to broaden their horizons and develop intelligence. Students are very interested in this method. They collect topics from textbooks, magazines, and materials.