《义务教育数学课程标准》指出:数学教学活动应该向学生提供充分的从事数学活动和交流的机会,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和技能,感悟数学思想和方法,积累广泛的数学活动经验。这就需要教师增强数学教学的开放性,实施开放式的课堂教学,更好地满足每一个学生的学习需要,更好地启迪学生的思维,使学生的创新精神和实践能力得到较好的培养。一、开放学习环境,培养学生创新意识 The Standard of Compulsory Education Mathematics Curriculum states that mathematics teaching activities should provide students with full opportunities for engaging in math activities and exchanges so as to help them truly understand and master basic math knowledge and skills in the process of exploration and cooperation and exchange of ideas. Mathematical ideas and methods, accumulating a wide range of mathematical activities experience. This requires teachers to enhance the openness of mathematics teaching, to implement open classroom teaching, to better meet the learning needs of each student, to better enlighten students ’thinking and to make students’ innovative spirit and practical ability be better cultivated . First, open up the learning environment and cultivate students’ innovative awareness