To ensure classroom behavior communication with parents, I have students fill out this chart each day - the color the first box either green, yellow, or red (to match their clip on the stoplight), and then I can add any notes, questions, etc. in the "teacher box". Parents are then expected to sign or initial in their box and return it to school the next day. It helps facilitate communication as well as being a handy place for us to jot notes back and forth - parents know that I will check it daily. I reward kids that have 5 parent signatures at the end of the week (sticker, etc.).