Meet with your child's teacher as often as needed to discuss his or her progress.  Parents and teachers working together will benefit your child.
 

Your child should have a comfortable, quiet place for studying at home. Having some milk and cookies would be nice.
 

The day of the test, make sure that your child is well-rested.  Students who are tired will have a hard time paying attention in class and cannot handle the demands of a test.
 

 Make sure your child eats a well-rounded diet all the time, but specially the days around the test.  A healthy body leads to a healthy, active mind.
 

Have books and magazines around for your child to read at home.  By reading new material, a child learns new words that might just appear on a test.  Oh, and don't forget to ask your child's teacher or librarian for a suggested outside reading list!