Infancy (0-12 months): Rapid growth in physical abilities, attachment formation, and early communication. Toddlerhood (1-3 years): Development of motor skills, language, and beginning of problem-solving abilities. Preschool (3-5 years): More refined motor skills, complex language usage, and social interaction skills. School Age (6-12 years): Academic skills, self-regulation, and peer relationships become more important. Adolescence (13-18 years): Identity formation, emotional regulation, and abstract thinking develop.
