作为中学的一门主要学科——数学,教学手段似乎就是那么单调,黑板加粉笔偶尔加一些实物教具。由于课堂教具的严重匮乏,加上学科自身的特点,无法达到其他学科教学形象、生动、具体的效果。严重影响了学生的学习积极性,使学生逐渐失去了学习数学的兴趣。为此,广大数学教师也不断探索行之有效的教学方法,然而往往 As a major subject in secondary school - mathematics, teaching methods seems to be so monotonous, blackboard plus chalk occasionally plus some in-kind teaching aids. Due to the serious lack of teaching aids, coupled with its own characteristics of the discipline, can not achieve the teaching of other disciplines, vivid and specific results. Seriously affected the enthusiasm of students to learn, so that students gradually lose interest in learning mathematics. To this end, the majority of mathematics teachers are constantly exploring effective teaching methods, however, often