Take a practice test. A practice test from College Board, the company that makes SAT exams, can help you see which areas you are strong in and which areas you need to study more. Don't stress over the results of the practice test. This is to help gauge your status.
Start studying early. The SAT is one test you can't cram for. You have to be able to comprehend material quickly, rather than spit out facts. By studying a little at a time for six months to a year ahead of the test, you'll be better prepared.
Use study aids. Both the Princeton Review and College Board offer study aids and practice tests that can help you improve your score.
Create vocabulary lists. Comprehension is a key factor to the SAT, so look at practice tests and write down words you are unfamiliar with. Create flashcards to learn the meaning of each word. This is helpful when you are taking the test and an answer depends on your understanding of a word.
Memorize basic math formulas. You are allowed a blank sheet of scratch paper when taking your SAT test. As soon as the proctor allows you to start the exam, write down the formulas on the paper for easy access. You can check the practice tests to see which formulas are best to know. Practice math problems using these equations so you know how to solve them.
Read newspaper or magazine articles thoroughly to test reading comprehension. Pick articles about topics that usually bore you. Material that is boring to you can cause your mind to wander during the test. Read articles throughout the time leading to the test and have a friend or family member ask questions to test your understanding of the article.