What can I do when...?

I would not go back to the instructor if she can't follow simple request. That could have been a life or death situation. As for the tubes in your daughters ears... I had tubes put in my ears all the way from 2 up til i was 10. That is when my parents took me to another doctor. I had my tonsils removed and never had ear problems again. I would recommend getting a second opinion on your daughters condition. It never hurts to get a second opinion.