《数学课程标准》(2011版)提出:“教师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。”在数学课堂教学中,要把面向全体学生作为实施素质教育的基本立足点,从发挥学生的主体地位和主动精神出发,鼓励和引导学生积极参与到数学学习中。教师要努力为学生创设自主学习、自主探索的时间和空间,培养学生的自 The Standard of Mathematics Curriculum (2011 Edition) states: “Teachers should stimulate students’ enthusiasm for learning and provide students with opportunities to fully engage in math activities so that they can truly understand and master basic mathematical knowledge in their own exploration and cooperation and exchange. And mathematics thinking and method, gain a wide range of experience in math activities. ”In mathematics classroom teaching, we should regard all students as the basic foothold in carrying out quality education, and give full play to students’ subjective position and initiative to encourage and Guide students to actively participate in mathematics learning. Teachers should strive to create a time and space for students to self-study, self-exploration, cultivate students’ self