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在苏科版教材九年级数学(上册)第二章“2.5直线与圆的位置关系(1)”的教学设计时,我立足学生已有的知识和活动经验基础,以培养学生运用“类比”方法解决问题的活动经验为主线来进行教学设计,获得了良好的教学实效.现把部分教学片断和设计时的思考整理成文,与大家交流.教学片断一:回顾基本图形之间的位置关系、数量关系教师板书“点、直线、圆”——呈三角形状.师:同学们,点、直线、圆是我们已经学过的三种
In the teaching design of the ninth grade mathematics of Su Ke edition (the second volume), “2.5 the relationship between the position of the line and the circle (1) ”, I set foot on the basis of the students’ existing knowledge and activity experience so as to train the students to use “Analogy” method to solve the problem of activity experience as the main line of teaching design, obtained good teaching effectiveness.Currently, part of the teaching and design time thinking finishing writing, and to communicate with you.Piece 1: review between the basic graphics The relationship between the number of teachers in relation to the number of blackboard “point, straight line, round ” - triangular shape.Master: classmates, point, line, circle is that we have learned three