<p>Personally, I think SAT prep courses would be a waste of time and money. If you’re a good student, how much time will they spend going over stuff you already know and don’t need to hear? How much time will they spend trying to teach you silly “tricks” instead of actually how to solve the problem because they think you’re not capable of doing that? I’m assuming that you once knew geometry really well. Just review what the test prep books think you need to know, and do problems, and understand the solutions. Get the pacing down. I’m not surprised that you need to go back over it–it’s been years and geometry isn’t used much once you complete it. My daughter also had to review some geometry as she took it quite young. A student with your math background should be able to score really well in math.</p>
<p>I would suggest self-study with a good book or two. Review the math topics that you don’t feel comfortable with. Get the type of questions down and get your pacing down. Make sure to go over all questions you get wrong. Then, see how you are doing. If at that point there are particular issues you cannot resolve or types of questions you struggle with (and perhaps a question or two to your teachers at school might help) then it may be worth while to hire a decent private tutor to go the extra bit you can’t accomplish on your own. Also, do quality reading.</p>