Weird SDSU Chem e-mail? I have no idea what's going on?

<p>SDSU e-mailed me and basically said, " All students who need General Chemistry as part of their academic requirements must either take a difficult entrance examination, or pass Introduction to General Chemistry (CHEM 100). We teach you the language and mathematics of Chemistry, and prepare you for our rigorous General Chemistry (CHEM 200). This class will be offered during part of San Diego State University summer session T1. Passing this course with a grade of "C" or better will allow registration in General Chemistry, (CHEM 200) in the fall 2014 term."</p>

<p>Apparently I'll be an entire semester behind if I don't take the summer class or pass this "difficult exam". Is this something they've done before or what? Also is it worth it? The program runs from June 16 to August 15.</p>

<p>This is the site: <a href="http://www.chemistry.sdsu.edu/100/"&gt;http://www.chemistry.sdsu.edu/100/&lt;/a&gt;&lt;/p>