Human Growth and Development / Unit 18 HGD 2566 short lesson, about 20 seconds
Sensitive Periods for Language
Captions available
The idea
Childhood is the optimal time for a first and a second language, entry 0641, and learners who start before about ten are often indistinguishable from native speakers, entry 0975.
In practice
A deaf toddler signing fluently with deaf parents, since early access to a full language protects development, entry 0643.
Where people slip
Entry 0975 calls this a sensitive period rather than a critical one.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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