Useful Phrases for the German Classroom

I was looking around for some posters to hang in my classroom with useful phrases, such as Ich verstehe nicht or Wie sagt man? I found some, but of course not exactly what I was looking for. So I made some of my own. Maybe you will find them useful, too?

So far, I made 5 phrases. You can download the PDF here: Basic Classroom Phrases (GitA)

Let me know what you think! Did I miss any?