《数学课程标准》在教学建议中提出“提倡算法多样化”和“鼓励解决问题策略的多样化”主张之后,“算法多样化”引起了广大数学教师的广泛注意和普遍认同。但是对“算法多样化”这一新理念认识的不同,往往会导致我们在实践过程中出现不同的做法。最近,笔者听了苏教版一年级教材 After teaching propositions such as “promoting the diversity of algorithms” and “encouraging the diversification of problem strategies”, “Mathematical Curriculum Standards” attracted extensive attention and universal recognition from the majority of math teachers. However, the different understanding of the new concept of “algorithm diversity” often leads to different approaches in practice. Recently, I listened to the first edition of the Soviet version of textbooks