That’s a question parents, pediatricians, educators, and caregivers ask over and over again as children grow and change. To help answer this important question, child development experts have created ...

Piaget’s stages of development include sensorimotor, preoperational, concrete operational, and formal operational. While there is some criticism of them, they may help characterize child development.

Children reach developmental milestones in how they play, move, talk, and act. The predicted ages for the milestones can be ...