<p>I do not normally post on chance threads as I have no knowledge of what exactly is in the package and what the adcom priorities are or the other hundred variables. Also, for CalTech there is an excellent thread that is self explanatory.</p>
<p><a href=“http://talk.collegeconfidential.com/california-institute-technology/442418-anyone-wanting-know-their-chances-getting-into-caltech.html[/url]”>http://talk.collegeconfidential.com/california-institute-technology/442418-anyone-wanting-know-their-chances-getting-into-caltech.html</a></p>
<p>That said, I will point out one thing: The middle 50% for SAT Math for Caltech is 770-800. So 75% of the students have between 770-800 (or 34-36 in ACT).</p>
<p>A 630 in math would put you somewhere in the bottom 1%. As a general rule, the further you are away from the norm on the lower side, you chances become exceedingly difficult. There are exceptions of course, especially in schools that allow for hooks, but the only hook in CalTech is a demonstrated passion for math and science. Hence the math portion of the SAT is very important to CalTech.</p>
<p>Rather than ask others for advice, I think you have the information to answer your own question.</p>