You get a whole week's worth of activities covering morning work, Français, writing, math, science, social studies and art. The activities are self-explanatory, making them easy for a sub to handle. They are generic and simple enough that they can be used at any time so you don't have to constantly be changing out the activities throughout the year. Prep the tub ahead of time, then when the uh oh moment happens, all you need to do is have a colleague get out your tub and your sub has everything