This is a great way for teachers to get to know their students because they are free to write about anything! Students can post without worrying about being judged or telling things they don't want their classmates to know, but want their teacher to know.
It is a google forum that has a video which explains how students can explain what they want their teacher to know about them. They input their name and type 5 things they want their teacher to know about them and submit it.