“Nothing is particularly hard if you divide it into small jobs.” –Henry Ford
Feeling overwhelmed? Divide the work into small jobs. Oftentimes, it is all about getting the momentum going. I once heard a teacher say that if you are depressed, pick one drawer to clean (it gets you moving).
Some students do better if you have them do the assignment they like least first–that way they get it over with. I am more the type that likes to begin with something easier, and this gets me going. Figure out what works best for you and your students/children. It could be key to having a smoother day.