So I was teaching today, the students were reading a novel out loud and doing a during reading strategy. I looked up at one point and noticed the principal sitting there! I have NO IDEA how long she was there, but she is really sneaky! I asked the kids after she left and one kid said she had been there for half an hour! I can't believe I never saw her. We were doing a really good activity, but I had that momentary panic... did I say anything wrong? did I let a kid get away with something they shouldn't have done? I teach my class like there is another adult in the room, anyway, so its funny that I immediately worry about what I did. I think observers should sort of come up to you and say, "Hi, I am just stopping in to see whats going on."