Psychology / Unit 8 Psych 0877 short lesson, about 20 seconds
Motor Milestones
Captions available
The idea
Motor development follows a predictable sequence from head control to sitting, crawling, standing, and walking.
In practice
Nearly all infants sit before standing and stand before walking, at widely varying ages.
Where people slip
Sequence is reliable and timing is not. Normal ranges for each milestone are months wide.
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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