When 3-year-old jake sees an airplane, he says "look mommy, it's a bird." what stage of cognitive development is jake exhibiting?

Jake is in the assimilation stage of cognitive development

the assimilation stage happens a lot in children, assimilation stage involves the use of the existing knowledge in order to deal with new objects and situations a during this stage a child can think about things symbolically . This is means that make one thing, a word or an object to stand for something other than itself. just like Jake associates the airplane with a bird .

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