数学教学的表征处理策略——基于专家教师的课堂教学分析

Processing Strategy of Representation in Mathematics Instruction :Based on the Analysis of Expert Teachers' Classroom Teaching

表征在学生学习数学过程中所起的作用很关键,它是教师、学生之间知识传递的外化载体。对小学数学专家教师的教学进行深度分析和研究发现,专家教师在教学中注重表征的多样化,适时进行表征的抽象,重视表征的转换。同时,专家教师在教学中鼓励学生自己提出表征,以构建自我的知识结构。

Representation plays a key role in the process of students＇ mathematics learning and serves as an external knowledge carrier between teachers and students. In this thorough analysis of elementary mathematics teachers＇ representational transition from textbooks to classroom teaching, the author suggests that expert teachers tend to focus on the diversity of representations, opportunities to promote abstract representations, and classroom conversations on representations. Meanwhile, expert teachers encourage students to make use of their own representations and to construct own knowledge structures.