My wife did the math on making 80k at her district in Texas (one of the better paying districts as it's known as a bad one).
If she did summer school (3 weeks) plus signed up for tutoring for the entire year (Mon-Thu from 4-6:30), and she completed the TEA Leadership whatever program (usually that means lying about how good your kids can read to the state) then she'd come out at above $80k. This is on top of her Bilingual and Masters stipends that are there because she's expected to do both English and Spanish newsletters every 3 weeks, lesson planning for all 4 subjects (that she can't get help on from her teammates as she's the only Bilingual teacher in her grade at her school), grading, SPED Meetings, mentoring a new teacher, and being on the Hispanic heritage committee.
I sarcastically told her she should do it and her response was: "I'd rather kill myself, but not after I kill you first"