Knowing the structure and organization of any test can help you in your preparation for the test.
The SAT is organized into three main sections, Critical Reading, Writing and Mathematics.
Critical Reading is broken down into three sub-categories: sentence completion (19) and passage-based reading (48). You will have 70 minutes to complete this section which is broken down into two 25-minute sections and one 20-minute section.
Writing is broken down into four sub-categories: identifying sentence errors (18), improving sentences (25), improving paragraphs (6) and essay writing (1). You will have 60 minutes to complete this section which is broken down into one 25-minute essay, one 25 minute multiple choice section and one 10-minute multiple choice section.
Mathematics is broken down into two sub-categories: multiple choice (44) and student-produced responses (10). You will ahve 70 minutes to complete this section which is broken down into two 25-minute sections and one 20-minute section.
The entire time alotted for the actual test is 200 minutes or 3 hours and 20 minutes.
It is important to know how the SAT test is organized so that you can begin preparation to handle the test. Chances are most students taking the SAT test have never had to concentrate on a test for such a long period of time. It is extremely important to practice taking tests that last for a long period of time to understand timing and maximizing effort.
*The information for this post was taken from The Official SAT Study Guide produced in 2009