<p>Graphing calculators help but your son doesn’t have to know all the secret tricks to get a high score. When I took it (800), I just plowed through. If there were problems I got stuck on or thought would take a long time, I immediately skipped them. Even if he doesn’t end up answering some questions, it’s ok. Maybe he didn’t get past 35 because he was taking too long on some. SAT MathII has a generous gurve (~5 wrong for an 800), so it’s best to just forget about ones that are too hard or time-consuming.</p>
<p>Also, I find that Polysmlt is the most beneficial app. The TI-83 and up may already have it programmed in.</p>