K teacher: just lunch, if you got/get a tag from the school indicating how your child gets home put an extra copy in a pocket or something, you can put supplies in if you have them but it may be easier for all of you if you take them to Back to School Night. The teacher will already have supplies (communal supplies in k) ready for the first day so she's not going to be without if you don't send them on day 1.
Good luck!
I was a first time k parent last year. Despite years of teaching k, I was nervous too!
