Although I knew the math part of the SAT very well, ThinkTank benefited me much in the writing section. They taught the grammar incredibly comprehensively, so comprehensively that when I just looked at the grammar section and read the questions I immediately catch the mistakes on my radar. However, I also think the many tests taken at ThinkTank helped me accommodate to the testing atmosphere and allowed me to better manage my time on the actual exam. As I got more practice my comprehension also strengthened, because I learned to read more effectively and quickly scan the pieces of information I needed to answer the questions. ThinkTank provides good classes that stimulate the testing environment and teaches the many basics of the exam.