Flunk the kid or hold her back a year. Heck, it's a charter school - kick her butt out for underperformance. These things would just as effectively punish her and her mother. getting other kids in on the act teaches nothing. (Though I suppose it teaches the other kids in the class that it's better to be on the side the shaming mob.)
While you have a valid point, society works on the notion of conformity (the shaming mob).
There is room in our culture for conformity and Independence.
This kid is demonstrating bad behavior.
Bad for her and bad for society.
Ideally this teacher would find the kids spark and get her to want to do the work, to take pride in her work.
What the teacher did was hardly the end of the world.
Lord only knows what lengths she went to to get this kids attention. I feel for her on a managerial level, as 10% of the people take up 90% of your time.
That’s why I am not a manager. the 10% would drive me crazy.