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我从1951年开始当小学教师,40多年来一直从事小学数学教学的实践和研究工作。建国以后,历次小学数学教学的重大变更,我都经历过并亲自参与,纵观建国五十年来小学数学教学方
I have been a primary school teacher since 1951 and have been engaged in the practice and research of primary school mathematics teaching for more than 40 years. After the founding of the People's Republic of China, I have experienced and personally participated in major changes in the mathematics teaching of primary schools in the past. Looking at the mathematics teaching for primary schools in the past 50 years after the founding of the People's Republic