Do your homework, understand and learn from your mistakes.
Participate in classroom activities.
Don't hesitate to consult your teacher should you have any queries on the subject that you are learning.
Extra materials are available from your teacher and you may ask your teacher about the details of any suitable reference books you wish to buy.
It is good to be a member of Singapore National Library for you can use its facilities to improve your studies.
Make full use of the school's facilities to help you to study. Visit the Library regularly and make use of the Self-Study room. The Self-Study room is a very comfortable place for you to hold study groups with your classmate or to just do your own revision.
There is also Internet connection in the IT Corner for you to search the Worldwide Web for learning information.