Abstract: The purposes of the present investigation were to study the relationships between goal orientation, motivational climate and perceived ability with intrinsic motivation, behavioral patterns and performance. One hundred and sixty three males and females students from physical education classes selected and completed the Task and Ego Orientation, Intrinsic Motivation, Perceived Motivational Climate in Sport and Perceived Ability questionnaires. The results of structural equation models (SEM) and correlation coefficients showed that there are significant correlations between ego-orientation, task-orientation and mastery climate with intrinsic motivation (R = 0.58, χ2 = 103.72, p<0.0001) and between intrinsic motivation with trend, effort and performance (R = 0.42, χ2 = 37.85, p<0.0001). In conclusion, to increase trend and effort of students in sport classes their achievement goal orientations should to considered and increasing the intrinsic motivation, perceived ability and mastery climate have a facilitative role.