“提高学生的数学表达和交流能力”是新课程标准特别强调的理念,郑毓信先生更是指出,数学交流“应被看成数学教学的重要目标之一”.有鉴于此,数学教育工作者对数学交流的有关课题进行了广泛的研究,文[1]、文[2]对中学生数学交流情况进行了调查,探讨了学生数学交流状况不容乐观的原因,文[2]还从观 “Improving students’ mathematics expression and communication skills” is a concept that is particularly emphasized in the new curriculum standards. Mr. Zheng Yuxin also pointed out that mathematics communication “should be considered as one of the important goals of mathematics teaching.” In view of this, math educators are The topic of mathematics exchange has been studied extensively. Texts [1], [2] investigated the situation of mathematics exchange among middle school students, and discussed the reasons why students’ mathematics exchanges are not optimistic. The article [2] also looked at