See bold red print in your post. You just confirmed my statement.
How is it that a mailman's salary is close to a teacher with advanced degrees and certifications? Something's wrong with this picture. very wrong. But I'm glad that teachers in your state is nicely paid. Many teachers in many states are not.
One would think teachers should just give up and work for USPS or subway since it's much less stressful and plus it has better benefits.