近年來，數學教育的學者發現寫作可以幫助數學的學習，因而建議將數學寫作活 動融入數學教學中。寫作究竟在數學教育上具有那些功用? 它如何能促進學生對數學知識的 了解與學習? 國小教師要如何將寫作活動融入數學教學中? 為本文所要探討的主要問題。本 文首先討論數學寫作教學的背景，認為在當前數學教育課程強調「溝通」與「主動學習」的 精神下，數學寫作必將受到重視；其次從數學的解題活動、表徵活動、建構知識活動與產生 省思活動，來闡述數學寫作的理論基礎；最後據以提出八項數學寫作活動的內涵，以作為教 師將寫作融入數學教學活動的參考。

　　　　　During recent years, the mathematics educators have discovered mathematics writing can help mathematics learning, so they suggested that integrating mathematics writing into mathematics instruction. What are the functions of mathematics writing? How can it help students' understanding and learning of math? How can elementary teachers use it in the mathematics class? These ideas will be discussed in this study. First this study attempt to explore the background of mathematics writing. While communication and active learning are very important themes in the curriculum domain of mathematics education, mathematics writing is gaining more attention under this environment. Next, the rationale of mathematics writing will be explored from the prospects of problem solving activities, representational activities, construction knowledge, and generate reflection activities. Finally, 8 kinds of mathematics writing activities were proposed for teachers to teach elementary mathematics.