classes: lecturer. My class is mostly quiet, so to us you're a very good person and you've explained everything to us... curriculum. My class is mostly quiet, so to us you're a very good person and you've explained everything to us... facility. My class is mostly quiet, so to us you're a very good person and you've explained everything to us... general. My class is mostly quiet, so to us you're a very good person and you've explained everything to us...