《义务教育数学课程标准》指出:“教学活动应激发学生的学习积极性,向学生提供充分从事数学活动的机会,帮助他们在自主探索和合作交流的过程中真正理解和掌握基本的数学知识与技能、数学思想和方法,获得广泛的数学活动经验。”在学习中,学生是学习的主人,教师是学生学习的组织者、引导者与合作者。因此,教师在教学中,要重视运用教学手段,激发学生的学习兴趣,提高课堂教学效率。 The Standard of Compulsory Education Mathematics Curriculum states: “Teaching activities should motivate students to learn actively and provide students with opportunities to fully engage in math activities so as to help them truly understand and master basic mathematical knowledge in the process of exploration and cooperation and communication Skills, mathematical ideas and methods, gaining extensive experience in math activities. ”In learning, students are the masters of learning and teachers are the organizers, guides, and collaborators of student learning. Therefore, teachers in teaching, we must attach importance to the use of teaching methods to stimulate students’ interest in learning and improve classroom teaching efficiency.