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1教学目标教学内容:人教A版《数学2》(必修)第四章4.2节。三维目标(知识与技能、过程与方法、情感态度与价值观)是有机统一整体,不可分割,所以我们要制定教学目标,统筹兼顾,不硬分三维。(1)能根据给定直线、圆的方程,判断直线与圆的位置关系。(2)体会坐标法的思想,用代数方法解决几何问题。(3)能根据直线与圆的位置关系解决简单问题,
1 Teaching Objectives Teaching content: People teach A version of “Mathematics 2” (compulsory) Chapter IV 4.2. Three-dimensional goals (knowledge and skills, processes and methods, emotional attitudes and values) are an integral and integral part of the organic whole. Therefore, we must set goals for teaching, make overall plans and take no compromise. (1) According to the given line, the equation of the circle, determine the linear relationship between the position and the circle. (2) understand the idea of coordinate method, using algebraic methods to solve the geometric problems. (3) According to the relationship between the position of a straight line and the circle to solve simple problems,