随着新课程的推进,数学教育越来越关注学生主体性的发挥,在学习中要求学生以发现者、研究者和探索者的身份出现。课堂作为学生的实践基地,必须要开放,给学生营造一个生动活泼、轻松愉快的学习环境。 With the advancing of the new curriculum, mathematics education is paying more and more attention to the student subjectivity, and students are required to appear in the learning as the discoverer, researcher and explorer. As a practice base for students, the classroom must be open to students to create a lively and relaxed learning environment.