<p>I've read that colleges consider how many AP classes a student takes relative to how many are offered at his/her highschool. My question is, how do colleges know what courses (including AP courses) are offered at a particular high school?</p>
<p>The high school sends a profile of the school with your application that says what classes it offers, etc. Also, the guidance counselor recommendation will discuss how the student compares with the rest of his/her class, which will discuss the comparative rigor of courses.</p>