As for Grade 9 students,we get much stress from studing for too long.So it is important for us to relax after class.Most of girls like shopping to relax.And most of boys like playing basketball and playing computer games to relax.In my opinion,I think shopping and playing computer games are bad ways to relax.Because shopping can waste a lot of money,and playing computer games can make us short sight.I usually relax by playing basketball.I think it not only can build my body but also can keep fit.What's more,it can make me concentrate on my study better.So,I think playing basketball is a good way to relax after class.