Human Growth and Development / Unit 5 HGD 0607 short lesson, about 20 seconds
Left-Handed Children
Captions available
The idea
About ninety-five percent of right-handers show typical lateralization, against about seventy-five percent of left-handers; handedness reflects genes and environment together.
In practice
Hand preference appearing by six months in one child and not settling until age nine in another.
Where people slip
The misconception is that left-handers think or perform differently. No scientific evidence shows differences in cognition, art or athletics.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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