The mischievous troublemaker who loves saying "no"

By the age of 3 to 4, many children begin entering what psychologists call the "first period of defiance," asserting their growing independence by saying "no." But some children do it deliberately.

Autonomy China Light Industry Press Original Chinese Introspective ability Chinese Joy Self-awareness 3 2 1 0 6 5 4 Health Chick Chirp Habit formation Self-awareness Communication and expression Small class Middle class Kindergarten class Pre-kindergarten Chick Chirp