我国的小学数学教育历经了五十多年的实践和理论积累,终于在二十世纪末发生了一场深刻的历史性变革。在这个“动荡”的时期,教师不仅要筛选自己原有的教学理念、策略,保持优秀的传统,改变几年、十几年乃至几十年积淀下来的积习,而且要对这场变革的背景、含义、意义有深刻的理解 After more than fifty years of practice and theoretical accumulation in primary school mathematics education in our country, a profound historical change finally took place at the end of the twentieth century. In this “turbulent” period, teachers not only need to screen their original teaching concepts and strategies, maintain their fine traditions, and change the accumulation of years, decades or even decades, but also set the context for this change Meaning, meaning has a profound understanding