本研究主要是為了改進國中數學教學所做的延伸教材的一個研究,目的是在於希望研究結果,不但能有助於促進研究者在教學實務上的專業成長,並且提供數學延伸教材給學生多樣化的解題方法,再依據學生的程度與需求提供加深與加廣的課程,促進學生的學習意願,並期望能將此研究提供給有需要的教師參考使用。本研究以行動研究的方式探討,且研究目的如下: 1、學生在學習數學延伸教材後,能提升學生積極的數學學習態度。 2、數學延伸教材的教材設計編排,能幫助學生解決數學問題。 3、經過數學延伸教材的學習後,能提升學生的數學學習成效。 先實施數學延伸教材的教學,再對學生實施數學評量,再針對測驗成績進行比較分析,最後針對本研究結果提出結論與建議。 This study is an extensive curriculum research which aims at improving mathematics teaching in junior high schools. On one hand, the researcher hopes that the result helps accelerate teachers’ professional growth, and provides students with multiple problem-solving skills. On the other hand, the deeper and broader curriculum extends needs for students in different levels and also their learning willingness. The action research is open to teachers in need and the purposes of this study are as followed: 1.After learning the extensive material, students have positive learning attitude towards math. 2.The design and arrangement of the learning material help students solve math problems. 3.After learning the extensive material, students’ learning effect has been enhanced. The action research implemented the extensive material in teaching, and then an assessment was held, followed a further comparison and analysis on the scores. At the end, proper conclusions and suggestions were raised according to the results.