Additionally, the Union has study rooms, a bowling alley, food court, a bank, billiard tables, and performance areas for everyone's use. Altgeld Hall is seemingly the oldest structure at the University. Its bell tower chimes every 15 minutes and for ten minutes before the hour during standard passing periods. This building is home to the mathematics department. All engineers are required to take several semesters of math, some fields requiring more.
Class sizes vary in size, but the general trend is decreasing sizes with increasing course level.
However, a majority of large classes break down into smaller discussion sections so that individual questions can be answered and allow for more one on one interaction. Among the classes are calculus, differential equations, matrix theory, and statistics. Noyes Lab is home to the chemistry department. Chemistry is another classes which all engineers have to take, in varying quantities. The lecture sizes are usually large.