<p>Go to [Khan</a> Academy](<a href=“http://www.khanacademy.org/index.html]Khan”>http://www.khanacademy.org/index.html) and watch any of the Pre-Algebra, Algebra I/II, Geometry, or Trig videos that you think you need help with. </p>
<p>He’s also dissected 400+ SAT problems in his other videos (see [Khan</a> Academy](<a href=“http://www.khanacademy.org/sat.jsp]Khan”>http://www.khanacademy.org/sat.jsp)). Even though it’s SAT, it will give you insight into how to go about answering questions on the ACT.</p>
<p>Practice, practice, practice. Sparknotes has a free ACT book posted at [SparkNotes</a> Test Prep: ACT Information Center](<a href=“SparkNotes: Today's Most Popular Study Guides”>SparkNotes: Today's Most Popular Study Guides) and it includes practice tests.</p>
<p>When you miss questions, go back and look at them carefully. Review how and why you missed these questions. Take notes. Try not to make the same mistakes more than once.</p>