<p>I have taken the ACT twice now and gotten very similar scores (31 and 31, with different subscores) without preparing. I would however, prefer to raise them a bit more, particularly in math. How much prep time is necessary to see substantial improvement at this level? Can anyone who has studied recommend some good books/websites? Below are my individual section scores if that helps.</p>
<p>1st time
30 English
31 Mathematics
32 Reading
31 Science
8/12 Writing</p>
<p>2nd time
32 English
30 Mathematics
32 Reading
30 Science
7/12 Writing</p>