The school year starts and teachers are already burned out.

On the first day school last week, an assistant principal at a Texas school was confronted by an out-of-control student who was screaming, hitting other students and throwing chairs at teachers. By the time an air ambulance landed outside the school, Candra Rogers had lost the use of her right eye after the 11-year-old boy hit her with a wooden hanger. Education officials say the woman’s ordeal is a graphic illustration of the stress facing the nation’s teachers and school administrators.  ABC News' Jim Ryan checks in w/Joe with a look at whats happening.