<p>
</p>
<p>The schedule indicates 230-260 for courses common to both chemical engineering and chemistry that are normally taken by freshmen and sophomores (Chemistry 4A, 4B, 112A). After chemical engineering and chemistry split, required courses in each major seem to be about 130-150, and in-major electives seem to be about 30-60, based on the schedule.</p>
<p>
</p>
<p>Class sizes get smaller at the upper division level because several majors that share common lower division courses split off of each other to take their own upper division courses.</p>
<p>Yes, some schools maintain small class sizes for common freshman level courses instead of teaching them “in bulk” like big state universities do. But the disadvantage would be less instructor time available to teach upper division courses, which is why some schools offer many upper division courses only once every year or once every two years.</p>