When children hear a new word in a familiar context, they can simply add the word to the general category without fully understanding the word. this is called

When children hear new word in a familiar concept they add that word to the general category without understanding it fully this is known as Fast mapping

Explanation:

In cognitive psychology, when children learn a new concept or word by hearing it in a familiar context, with minimal exposure and without fully understanding the concept; this hypothesized mental process is known as Fast mapping.

Or we can say, fast mapping is the ability of the children to connect a word to its meaning after little exposure, without fully understanding it.

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what words? are you talking about to complet what sentence