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<p>The high performing high school student may have completed calculus 1 (or beyond) in high school, while the normal track college bound high school student may have completed precalculus in order to take calculus 1 as a college frosh. But less well prepared students may have to retake algebra, trigonometry, and/or precalculus after they get to college.</p>
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<p>However, if you were previously in lower division math courses, but are now looking at your peers’ upper division math courses, note that upper division math courses (usually mainly focused on proving mathematical theorems) are often seen as much more rigorous than lower division math courses (usually mainly focused on applying math to solving problems, unless you take honors courses).</p>
<p>Note that most people in lower division math courses are taking them as needed for solving problems in subjects like engineering, economics, or science. It is mostly math majors (with some students in other majors like physics, economics, statistics, and computer science) who take upper division math courses.</p>