[KongchangAI]
Unverified88% confidenceDecision RuleTime unknown

3-4岁选APP应以'数感启蒙'为核心(点数、数量对应、大小比较),而非过早引入加减法运算;符号化运算建议5岁半以后引入,否则易造成机械记忆而非理解

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