本研究旨在探討分段式評量教學法對高二學生於學習數學時學習成就的影響。研究對象為台北縣某國立高中二年級理組學生，分為實驗組42位及控制組44位共86位學生，以20週的時間進行實驗，觀察分析其學習成就的改變。 本研究結果發現，在相同教學時間下： 1. 分段式評量教學法在整體學習成就方面有正面影響且結果達顯著差異。 2. 對不同學習風格學習成就之正面影響雖未達顯著水準，但學習成就相對改善值似乎有增加的趨勢。 3. 對不同學習程度分組而言，中分組與低分組學生之學習成就方面有正面影響且達顯著差異。 4. 實施分段式評量教學法的學生比使用傳統教學法的學生在學習態度方面似乎較不會有放棄數學的現象。 綜而論之，分段式評量教學法可提供教學者，在面對數學學習成就低落的學生一個有效的引導方法，讓這些學生不僅不會放棄數學，還能漸漸的建立良好的學習習慣。 / This research mainly aims at evaluating how divided assessment teaching method would effect junior students’ mathematics-learning performance in high school. A case study was conducted on science-team junior students in a Taipei-county high school, composed of 42 students in experimental group and 44 ones in control group respectively, amounting to 86. This experiment spanned as long as 20 weeks for analysis on how students’ learning performance would be benefited. It is thus concluded in this research after evaluating both 2 group’s learning performance in term of equal length of time as below: 1. Divided assessment teaching method would have positive effect on learning performance at significance level. 2. Although divided assessment teaching method has positive effects on learning performance for various learning style subgroups, these positive effects are not significant. Their relative improvements of learning performance seemed to be increased, too. 3. When evaluated in term of original-performance level, students’ learning performance in average-level and in inferior-level subgroups both would be benefited positively at significance level. 4. Students taking divided assessment teaching method would have more persistent learning attitude than those taking traditional teaching method. In summary, divided assessment teaching method could help teachers to offer more effective teaching-guidance to students who had inferior learning performance. As a result, students would not only persist in mathematics learning but also cultivate enthusiastic learning attitude gradually.