Please tell me about a day in the life of a K or 1st grade sub. What are the lesson plans like? What do you do with them all day? How do you maintain control of the class? Do you ever come up with "filler" yourself, or do schools look down on that? What about 2nd-5th? I'm sure it's much different from a K or 1st class. How is it different? How does your day go? Which grade do you prefer and why? What would be the best level for a brand new sub to start with?