婴儿学会摆弄物体时,对于物体的功能认识是模糊的。在婴儿看来,碗、匙子等物体什么活动都可以使用。例如,孩子把“碗”作为一种通用工具,用它当锤子敲桌子,用它当杯子喝水,还可以把它当球扔出去。总之,婴儿认为他手中的物体是“万能”的,没有固定的用途,也没有固定的用法。这是孩子认识能力的局限性, When babies learn to play with objects, their understanding of the objects’ functions is vague. In the eyes of babies, bowls, spoons and other objects can be used for any activity. For example, a child uses “bowl” as a generic tool, using it as a hammer to knock on the table, using it as a cup to drink water, and throwing it out of the ball. In short, the baby thinks the object in his hand is “universal ”, there is no fixed use, there is no fixed usage. This is the limitations of children’s cognitive ability,