Beginning teacher pay out here (not including what is put into retirement and medical) is $30,443.07 per year.
Some schools are year round. This just started with the last school session.
Even in schools that have summers off, the teachers don't get them off. They spend the summer taking mandatory classes and developing their class program for the upcoming school year.
Time spent at work: It varies from school to school. They do not *have* to volunteer for extra-curricular activities, but if they don't, they risk losing their job as the amount of volunteer time they put in taken into consideration when cutbacks happen, and lots of cutbacks are happening in this wonderful economy.
They take work home with them to grade and make lesson plans for the next day. They do not have time to do this during the school day because they are teaching. They keep up records and notes on the students and if they have assigned a student detention, they also put in the time to stay with the kid after detention. (some kids love this as they see it as revenge on the teacher for them getting in trouble!)
Right now there are schools without money for textbooks. Some teachers are buying them on their own. They also buy anything extra they need or will find helpful in teaching a class. This can be written off on taxes, but only up to a certain amount. I think they said $200, but teachers often spent much, much more than that. The school doesn't even supply so much as copy paper in my daughter's school. Teachers have a wish list and students can get points for bringing in normal stuff like copy paper, whiteboard markers, etc..
That's how it works out here. I don't know about other places.
They could make just about as much money working as a cashier and not have all the stress, which is why I love the teachers where I live. They do it because they enjoy what they do. Many are getting burned out with the way kids behave and are very frustrated, but they still have teacher's hearts and that is pretty cool to see.