I have been subbing for 4 months now and am still undecided as to what grade level I want to teach. What key differences have you noticed? Do you think my observations are correct? Here's a few differences I've noticed: Student independence: Pretty obvious here with older students being more independent, younger ones need more guidance Student energy level: Younger students have more energy and have to be calmed down, including middle school students. HS students have to be woken up sometimes Student sass/attitude: to me it seems like middle schools have the most sass, then HS'ers and then elementary. Both elem and middle school students have some silliness sometimes which can, sometimes be fun. Elementary students seem to be the nicest. Fights: Middle school seems to have the most fights. Kids will hit one another in elementary but they aren't so much "real" rights "Given up on school": Certain elementary students aren't jaded and feel like they still have a chance at succeeding academically. This seems to change with age with older kids becoming more jaded Use of an adult voice: I've noticed that at least though 4th grade a lot of teachers use a high pitched voice, almost like baby talkish. In middle school and beyond students are talked to in an adult -like manner Teaching style: Elementary, especially kindergarten and first grade is often "sing-songy." For grades 2-4 it isn't sing-songy but it requires slow speaking in a "nice happy voice." The teaching voice and style in middle school and high school is pretty much the same.