Here is some feedback I left for many teachers recently (at least 5X over the past 2 weeks) which is intended to be constructive not critical -especially in obviating potential misbehavior with adolescence.
It’s helpful for subs to have some measure of work due the same hour –otherwise, invariably, many (typically most) will blow-off assignment (which,
by itself, is inconsequential to me), but, predictably, idleness quickly leads
to misbehavior & then challenges of intervention ensues because of the
disruptions it causes for those students who
are working -especially on a Friday which I have affectionately bemoan as "Freaky Fridays". If students know in advance that a project is not due the same day, then I know the classes that day will most certainly become a nightmare of behavioral challenges.