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幼儿在日常生活中总会碰到类似“现在是多少,多多少,少多少,是否相等”这样的问题,数运算正是幼儿解决这些问题的主要手段。当幼儿开始关注把两个集合组合在一起或把一个大的集合分成几个部分后发生了什么时,他们就开始理解数量的变化,即开始形成数运算的概念。当幼儿发现或理解两个或者几个更小的集合如何组合成一个大的集合时,他们就会开始慢慢理解一个大的数包含几个更小的数。这为幼儿解
Toddlers encounter problems like “how many, how many, how many, are they equal now” in everyday life? The number is the primary means for children to solve these problems. When toddlers start to pay attention to what happens when the two sets are grouped together, or when a large set is divided into parts, they begin to understand the quantitative change that begins to form the concept of arithmetic. When a toddler discovers or understands how two or more smaller sets fit together into a large collection, they begin to slowly understand that a large number contains a few smaller numbers. This is for children