數學課程實施－一位國小資深教師的個案研究

本研究的目的在瞭解教室內數學課程實施的情形，並探討影響教師數學課程實施的因素。以一位任教超過十年的國小資深教師為對象，採用個案研究法，透過教學觀察和訪談來蒐集資料。結果發現，在課程實施方面，雖然大部分源自教科書，但是個案教師會調整問題的情境和表徵方式；在數學任務的類型上，個案教師大部分採用高認知需求的數學任務，並以解題、發表、討論的方式來實施，過程中強調不同表徵間的連結。在影響課程實施的因素上，本研究發現個人的教學知識、信念和角色定位，對個案教師數學課程實施的影響較大，相較之下教科書的特色、學生的表現和脈絡等因素影響較小，但還是會影響個案教師數學任務的使用與實施。

關鍵字

國小教師；數學課程；課程實施

並列摘要

The purpose of this study was to explore how an experienced elementary school teacher implemented mathematics curriculum in her classroom, and to identify factors that were considered during the implementation process. Case study methodology was used to study a sixth-grade teacher with more than 10 years teaching experience. The primary data sources were classroom observations and teacher interviews collected during the 2006-07 school year. Findings of this study indicated that the teacher actively chose and then frequently adjusted mathematics tasks from the textbook. Most of the tasks she used during her teaching were classified as high cognitive demand mathematical tasks. She regularly implemented these tasks in an interactive way and provided many opportunities for students to discuss and explain their thinking as they worked on and completed the tasks. The teacher usually actively interpreted the students' reactions and took account of textbook features in deciding how to implement mathematics tasks. This study also found teacher identity, which included her teaching knowledge, beliefs about students and teaching, and professional role identity, had significant impact on her curriculum implementation. The limitations of the teaching context that the teacher faced did not seem to be considered during her curriculum implementation.