[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

2-4岁选大颗粒抓握型(如毛毛虫计数、彩虹熊仔),5岁以上选带凹槽/卡扣的精细操作型(如计数框、数字连线板),过早引入精细教具会因手部肌肉未发育导致挫败

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