Development: children"s development influences their experiences, but their experiences also influence their development, (e. g. rewards > behaviors > abilities) Myths: infant determinism, childhood fragility, e. g. , regression therapy. Infants are born with large set of automatic motor behaviors (cid:523)reflex"s(cid:524: wide range in the rate and manner in which children achieve motor, sucking, rooting, tongue, faces milestones, physical maturity+ cultural/parenting practices, but predictable developmental sequence. Adolescence: transitional period between childhood and adulthood, bodies reaching (cid:498)full maturity(cid:499), in part die to estrogens and androgens, genes and environment influence timing of puberty. Physical peak in early 20"s: strength, coordination, speed of cognitive processing, physical flexibility, declines then begin: muscle, sensory processes, fertility, theories of how we acquire the ability to learn, think, communicate, and. Compared to what? (cid:499)(cid:524: 11- adulthood, can understand hypothetical reasoning beyond here, also logical concepts and abstract questions (e. g. , if and now, formal operations.