Both of my parents were teachers and one thing I can tell you is that you can not rely on a teacher with limited control in the first place to CHANGE the damage done by a lifetime of fucked up parenting and bullshit habits and excuses. A school teacher can't even reprimand a kid today without having their job called into question...yet we really think PE should work like a personal training combine?
I got nothing from organized PE in high school. At the most, it just gave us an hour to play basketball or volleyball. But then, I don't remember more than two kids in the entire school being fat in the first place.
How is a school PE teacher supposed to get all of these fat ass video game playing kids to change their habits, eat right, AND do intense exercise while in school? It is damn near impossible unless you bring back the ability to spank these kids.
You are basically asking a teacher to NOT reprmand your kids, while NOT making them feel bad about themselves at all (because we all know parents will be calling for a firing of that teacher if you so much as make Billy feel like he's fat to start with), while also getting them to change completely.
Good luck with that.
This stuff starts at home. That teacher and that school didn't have those kids. This comes back to personal responsibility.
If you don't want fat kids, quit letting them do all of the things that make them fat.