数学教育学报2025，Vol.34Issue(5)：1,14,2.
数量的运算与数的运算
Quantity Operations and Number Operations
史宁中1
作者信息
- 1. 东北师范大学 数学与统计学院,吉林 长春 130024
- 折叠
摘要
Abstract
Number operations represent an abstraction of quantity operations.The essential distinction lies in that quantity operations possess concrete contextual backgrounds,whereas number operations lack such contexts.The concepts of multiplicand and multiplier are exclusively relevant to quantity multiplication.In numerical multiplication,deprived of concrete contexts,it becomes impossible to distinguish which factor serves as multiplicand and which as multiplier.During mathematics instruction,when abstracting from quantity multiplication to number multiplication,educators must facilitate students'perception of the relationships between measurement units inherent in quantity multiplication.关键词
数量的运算/数的运算/乘法Key words
quantity operations/number operations/multiplication分类
社会科学引用本文复制引用
史宁中..数量的运算与数的运算[J].数学教育学报,2025,34(5):1,14,2.
