<p>I’m thinking the books you have should suffice - if you use them to their maximum potential. Essentially what your current score says is that you’re well-rounded and you truly have potential; you just have to brush up on some concepts, while also developing a strategy that works for you.</p>
<p>Here’s my specific advice by section:
Math - Brush up on concepts. I would recommend that you go through one or two math tests without timing yourself and try to get every single question correct. If you don’t know how to do a specific problem, consult books, internet, etc. in order to understand and learn how to do it. Ensure that you have strong foundations in algebra, geometry and counting/probability. That alone will get you into the high 600s. Once you’re up in that score range, it’s just about not making silly mistakes.</p>
<p>Writing - Most questions can be answered based on how you think it sounds in your head. If that doesn’t work, try to go through Gruber’s and other books/sources and learn some grammar rules. Exercising proper grammar in your own daily life helps too since you will become familiar with hearing the right way things are said.</p>
<p>Critical Reading - This is by far the toughest (and it’s the one I struggled with the most), and different people will give you different types of advice on how to approach this section. If you’re good at memorizing vocab, then certainly do so - use Quizlet, Direct Hits, etc. I have heard that mastering a certain set of vocab alone will have a huge impact on your reading score - not just for sentence completions but also the passage-based in-context vocab questions. I would also advise that you try to read a variety of stuff for fun over the summer. It will improve your reading speed, while also improving your comprehension ability (and increasing your vocabulary). Just like with math, try to go through a couple critical reading tests without timing yourself and attempt to get every single question correct. By working through several SAT critical reading sections, you will also accustom yourself to the style of passages the College Board typically uses and be less likely to zone out during the actual test (this was personally a big problem for me when I first took the SAT).</p>
<p>All in all, practice makes perfect, but a lot of your SAT skills will also come from indirect prep (ex. paying more attention in school, reading for fun, speaking with proper grammar). All these tips should get you into your goal range and possibly even beyond. </p>
<p>Also, I’m not sure if you’ve already tried the ACT, but several people on this forum often recommend trying it since the SAT and ACT test different skills and concepts. From personal experience, I haven’t really seen a significant difference in the two as far as scores go, but it’s certainly worth trying if you haven’t already.</p>
<p>Hope these tips help! Good Luck! 
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