We used achievement goal theory to examine students' physical activity (PA) motivation and physical education (PE) enjoyment. Purposes included: 1) determine whether schools with different pedagogical approaches varied in student perceptions of mastery and performance climate dimensions, enjoyment, and PA; 2) examine gender and grade differences in enjoyment and PA; and 3) determine if dimensions of motivational climate predicted enjoyment and PA levels in PE, controlling for gender and grade. Youth (n = 290, 150 girls) from three southeast United States middle schools wore a pedometer and completed a motivational climate and enjoyment questionnaire. Boys were more active and enjoyed PE more than girls, and 7th/8th grade students were more active than 6th grade students. Enjoyment was positively predicted by teacher's emphasis on two mastery climate dimensions, controlling for gender. PE activity time was predicted by two performance climate dimensions, controlling for gender and grade. Implications for practice are discussed.