數學寫作能促進學生數學的學習成效，故日漸受到許多數學教育者重視，然而搭配數位平台將更能推廣應用。因此，本研究目的為檢視在wiki平台的環境下，採用適當的數學寫作策略進行寫作活動，對於分數除法解題之學習成效的影響，包括成就測驗分數、解題策略量與靈活解題程度的差異情形，以作為學生在線上數學寫作環境下，提升學習成效之參考。
本研究採不等組前後測設計，以桃園市國小六年級學生60人為受試者，分成二組進行教學實驗，實驗後以獨立樣本t檢定與共變數分析進行資料分析，研究結果如下。
一、六年級學生使用線上數學寫作比一般教室教學在測驗上可達較高水準。
二、六年級學生使用線上數學寫作比一般教室教學能有較多的解題策略。
三、六年級學生使用線上數學寫作比一般教室教學較能靈活解題。

Mathematical writing benefits to students』 mathematical learning, so it is valued gradually by mathematical educators. And it can be applied more widely with digital platform. The purpose of this study is to examine the learning effects on fraction division problem solving including the difference of the scores in achievement test, the amounts of problem solving strategies and the degree of flexible problem solving, when students studied writing on wiki platform through adequate mathematical writing strategies. The study can be reference for promoting students』 mathematical learning effects through online mathematical writing.
A nonequivalent pretest-posttest group design was used with 60 participants of two classes of the sixth grade at an elementary school in Taoyuan City. After the experiment, data analysis was adopted independent sample t test and ANCOVA. There were three conclusions as follows:
1. Using online mathematical writing gets more significant influences on the scores in achievement test than traditional teaching.
2. Using online mathematical writing has more problem solving strategies than traditional classroom course.
3. Using online mathematical writing makes students solve problems more flexibly than traditional classroom course.

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