text: I went through the College of Education many years ago and the taught high school for five years. Here is what was missing from my training:
  Awareness that many parents have dismissed educators as having authority in their own classroom. Their kids can do no wrong. As one parent said: "Our kid only submits to OUR authority"
  How to teach with 160 kids a day. That's 2 mins. per kid per day.  My half hour lunch was helping kids. I worked after school helping kids. I did lesson planning on Sundays. Paid for and took classes in the summer. Yet, I just could not figure out how to be the teacher I thought I should be.
  Knowledge that I should have accepted the invite by the guy teachers to play poker and drink whiskey after hours. 
  Awareness that if you cover evolution, the Vietnam war, our military involvement in banana republics, you will get grief from parents.
  Knowledge that some Christians may label you as "not teaching according to scripture".
  So, you are right, failed preparation.