The document discusses motor, cognitive, language, and social development milestones for children ages 2-3. Gross motor skills include activities like jumping, hopping, and kicking a ball. Fine motor skills involve tasks like stringing beads and cutting with scissors. Children at this age are also developing problem-solving abilities, logical thinking, number and time concepts, pretend play, and awareness of their own body. Social development involves parallel play, difficulty sharing, and managing emotions which can lead to tantrums. Signs of developmental delays include lack of interest in others, no imaginative play, and frequent tantrums.