From commentsyard.com
I've worked in schools that require students to stand up at the beginning of class and bow to their teacher or say good morning to their teacher and I never really liked it. I thought it was superficial and I never did it.I'd always just start class by telling my students to open their books. One day I did that and one student loudly said, "good morning teacher" and really put me in my place. I also then read that saying good morning teaches respect. It also might be the only time they speak to an adult (which I think might be debatable, but still).
So I decided to start saying good morning or good afternoon to my class as well as finishing up the class by saying good-bye. I think it's worth it. It lets the students know that I respect them. It also clearly marks the beginning and end of each class. It's something that I think all teachers should do.
