It’s really important to leave feedback for the classroom teacher. This can sometimes be done verbally or by email, but usually it’s by leaving notes.
A friend of mine used to leave gorgeous cards on the teacher’s desk, filling them in with how the day went. It was so nice to return to my class to see the card sitting on my desk!
I thought I would share what I use. It’s not particularly fancy but it works for me!
You can find more helpful tips & forms here: http://www.teacherspayteachers.com/Product/Casual-Relief-Teaching-Tips-Helpful-Forms-and-Checklists-1179364