<p>My son’s UMich science labs were always cancelled during weeks consisting of less than 5 school days (such as Columbus/October break, Thanksgiving week, or last-week of school). However, I can’t recall his Profs ever cancelled any of the lectures during any of those periods.</p>
<p>(P.S.: Instead of saying that labs were cancelled, I probably should’ve said that labs were typically NOT scheduled for weeks with less than 5 school days.)</p>