1.	To reinforce classroom learning and allow students to put their knowledge and skills into practice;
2.	To promote students' personal development by broadening their interests, developing their potential and providing opportunities for character formation and leadership training;
3.	To promote students' social development by offering opportunities for the broadening of their social experiences, the practice of social skills and the internalization of moral and social values; and
4.	To make school life more challenging and interesting.