<p>Does Amherst run on semesters or quarters (trimesters)? And how many credits are you allowed to take without having to pay extra; also, how many is average?</p>
<p>Semesters...don't know about the second question.</p>
<p>Everyone takes 4 classes, pays the same tuition. You can petition, I think - though not in your first year - to take an extra class, don't know how common it is.</p>
<p>In addition to the 4 classes, you may take a .5 credit music/dance/etc type thing as well.</p>