There are lots of places where teachers easily make 80k or more. Most states also drive additional salary requirements based on the level of education the teacher has. Also, the number of years teaching (though sometimes tied to the number of years in the specific school system/district) include increases too.

Source: a friend who taught elementary school in the Boston area.

I once had it explained by a teacher in highschool (in CA), that the compensation was based on both years worked and additional education they had completed. IIRC, teaching for 20+ years and taking all the education could net you $65k-$85k ~ 20 years ago. That was the upper range though.

There are also teacher unions involved.

That probably includes medical and pension.