There are occasional situations where a parent relocates, and bridging the distance between parent and child can be a problem. It is especially nice if your child knows you are watching the same program at the same time. Provide the teacher with your telephone number and address.
Children enjoy receiving mail.
Don't forget those delightful Halloween, Thanksgiving, Valentine's Day cards. Children respond more readily to specifics. When you ask age appropriate specific questions, you will have something to build on at the next telephone talk.