《数学算数》指出 ,教数学最重要的理由是“数学可用作交流信息、表达、说明和预测的最重要的手段” .现在各国纷纷将数学交流写进了教学大纲或课程标准 .但是有关课堂数学交流的系统探讨还没有真正开展起来 ,一些基本理论也还没有深入探讨 .本文就建构观下数学交流的意义和特 Mathematical Mathematics points out that the most important reason for teaching mathematics is that “mathematics can be used as the most important means for exchanging information, expression, explanation and prediction.” Nowadays, countries have written mathematics exchanges into syllabus or curriculum standards. However, The systematic discussion of classroom mathematics communication has not really been carried out, and some basic theories have not been discussed in depth yet. This article is about the meaning and speciality of constructing the mathematical communication under the concept.