True-infant-birth to 3 months: visual and auditory stimuli-3 to 6 months: noise-making objects and soft toys-6 to 9 months: teething toys and social interaction-9 to 12 months: large blocks, toys that pop apart, and push and pull toys.toddler-1 to 3 years - cloth books, large crayons and paper, push-and-pull toys, riding a tricycle, tossing a ball, and puzzles with large pieces-watches educational tv and videos for childrenpreschool-associative, imitative, and imaginative play-likes to draw, pain, ride tricycle, swim, jump, and run-watches educational television and videosschool-age-games that can be played alone or with another person-team sports-playing a musical instrument-arts and crafts, collectionsadolescent-sports-school activities-quiet activities-peer interactionsp. 90