Human Growth and Development / Unit 1 HGD 0022 short lesson, about 20 seconds
Averages and Individuals
Captions available
The idea
Developmental findings are statistical averages, so an individual who differs from the norm does not invalidate them; sequence and typical window matter most.
In practice
A toddler producing two-word phrases at twelve months rather than the typical eighteen.
Where people slip
Culture shifts timing too. Israeli parents encouraged more tummy time than Dutch parents, and their babies crawled better.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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