笔者有幸聆听了北京市特级教师吴正宪老师的几课,有感于吴老师在几个教学片断中恰如其分地体现新课程标准的基本理念,稍作粗浅分析,供大家欣赏借鉴。片断一(“面积单位的认识———平方米”)与学生交流,熟悉了解学生。复习学生已学过的面积单位:平方厘米、平方分米,让学生说出1 I was fortunate enough to listen to a few lessons of Mr. Wu Zhengxian, a top-grade teacher in Beijing. I felt that Mr. Wu had appropriately embody the basic concepts of the new curriculum standard in a few teaching pieces and make a brief analysis for everyone's enjoyment. Piece one (“understanding of area units --- square meters”) to communicate with students, familiar with understanding of students. Review students have learned area units: square centimeter, square decimeter, let the students say 1