AP PSYCHOLOGY

Detailed explanation-1: -Some researchers call this “creeping, ” but I prefer the term “hands-and-knees crawling, ” because it’s more descriptive of what babies do: Babies balance their weight on hands and knees, keeping their abdomens lifted off the ground.

Detailed explanation-2: -crawling, a pattern of prone locomotion in which the abdomen is in contact with the surface of support. The onset of crawling is a major milestone in infant motor development that also heralds a dramatic and pervasive set of changes in psychological functioning.

Detailed explanation-3: -A crawling baby does not move in a definite direction. Such kind of motion is called as random motion.

Detailed explanation-4: -Crawling is a specific four-beat gait involving the hands and knees. A typical crawl is left-hand, right-knee, right-hand, left-knee, or a hand, the diagonal knee, the other hand then its diagonal knee.

Detailed explanation-5: -Belly or commando crawl. Baby’s who favor the military-style crawl move their bodies forward while dragging their bellies against the floor.