fights antonia hilton returns to southlake, texas, where school began this week. reporter: for seven years, adam burns loved his job as a middle school technology teacher in southlake s carroll school system. but after members of a conservative political action committee won the majority of seats on the school board and texas passed laws restricting how teachers could address racism in the classroom, adam and his wife brandie, who is black, thought of their 11-year-old son. did you feel like you could be true to yourself and stay in this job no, not at all. reporter: adam quit in july but says carroll schools haven t found his replacement and his contract requires him to stay until they do. my message to other teachers would be to be true to yourself. for the district, i would just say it s time to start listening to the people that you employ reporter: given exhaustion and stress from the covid pandemic, one survey finds as many as 55% of america s educators are considering