随着教育理念的深入,如何提高课堂教学的有效性成为大家需要解决的课题。《数学课程标准》要求学生学有价值的知识,有实用性的知识,促使学生全面的发展,提高课堂教学的有效性。学教学有效性指在教学活动中,教师采用各种方式和手段,用最少的时间、最小的精力投入,取得尽可能多的教学效果,实现特定的教学目标,具体表现在:认知上,从不懂到懂,从少知到多知,从不会到会;情感上,从不感兴趣到感兴趣,从不喜欢到 With the deepening of educational philosophy, how to improve the effectiveness of classroom teaching has become a subject that everyone needs to solve. “Mathematics curriculum standards” require students to learn valuable knowledge, practical knowledge, to promote the all-round development of students and improve the effectiveness of classroom teaching. The effectiveness of teaching refers to the teaching activities, teachers use a variety of ways and means, with the least time and minimum effort, to obtain as much teaching effect, to achieve a specific teaching objectives, specifically in: cognitive, Never know to understand, from less to know more, never will; emotionally, never interested to be interested, never like to