Overextensions and Underextensions - Tatis

What is an Overextension?

• Children using a single-word utterance to express more than the common meaning used by adults

• Use a word in a more restrictive way than adult usage

• Children using their knowledge of semantic relations to learn syntactic relations

• A child including too many items into their word classes than adults

What is an Underextension?

• Children using a single-word utterance to express more than the common meaning used by adults

• Use a word in a more restrictive way than adult usage

• Children using their knowledge of semantic relations to learn syntactic relations

• A child including too many items into their word classes than adults

Which one is an overextension of "Wuau wuau"?

• 
• 
• 
• 

Please draw a graphic representation of an Overlap with Under-Extension:

Which one would be an Underextension of "mommy" for Stormi?

• 
• 
• 
•