The other night I came home late so I wasn’t around to tuck my kids in. When I did get home I went to check on them- but I wanted them to know I did (because they ask sometimes). So I left a note.
My 5 year old is learning how to read so I left him a note “DAD LOVES <NAME>” in big bold letters. I purposely made it simple. He learned how to read “dad” recently. He recognizes his name and wrote “love” recently on a few birthday cards.
In the morning my 5 year old bounced out of his room all excited with his note and read it with a drop of help.