Our goal was to identify how students' perceptions of their parents shape the kind and degree of motivational goal orientations that they adopt in their mathematics classroom, broadening the application of achievement goal orientation theory and self-determination theory to students in Korea. Two groups of students participated, one from a middle school located in a large metropolitan area and the other from a small city high school. Multisample path analysis of data from both groups revealed that Korean students' different goal orientations were predicted by their perceptions of parental goals and motivating styles and by their perceptions of classroom goal structures, mediated by different types of self-regulated motivations. Particularly interesting was the finding that Korean students' degree of mastery goal adoption was associated mostly with identified regulation, not with intrinsic motivation, and predicted by their perceptions of their parents' motivating styles, both autonomy supportive and controlling, in addition to perceptions of parents' mastery goals. Perceptions of classroom goals were stronger predictors of students' own goals than were perceptions of parents' goals and motivating styles. We offer an integration of self-determination theory and achievement goal theory. (Contains 5 figures and 2 tables.)