As far as teachers working less.. do you know any young teachers? We're both on Hacker News right now. Teachers have been at work since 7AM teaching in front of a classroom, and are currently doing grading and lesson planning.
Regarding the pensions, I agree it's an area for reform, and a case in point of union dysfunction. But as long as people like you come across as borderline hostile to the idea of teachers being paid well for a job well done, they're going to close ranks behind the union, and I would too.
EDIT: I don't care what some report says about hours in the aggregate, especially one that presumably intermingles running-out-the-clock 64yos with young teachers. I don't know how it was compiled but I'm sure I could find one saying the exact opposite if I cared to. I'm assuming you don't know many teachers, otherwise you would get what I'm saying here.