The document defines key terms related to gender: sex refers to biological categories of male and female, gender refers to culturally constructed distinctions between femininity and masculinity, gender stereotypes are widely held beliefs about abilities and traits, and gender differences are actual disparities between the sexes. Research supports cognitive differences like females performing better at verbal tests and males at math/visual-spatial tests. Research also supports behavioral differences like males being more aggressive and females being more sensitive to cues and susceptible to persuasion. The document discusses how children learn gender roles through processes like operant conditioning, observational learning, and self-socialization. Parents, schools, and media influence children to follow traditional gender roles.