Her parents failed her. It is THEIR responsibility (per Connecticut State Constitution).
That’s exactly what I was thinking. We had 4 kids and we tauht them all to read & do math. We never assumed the teachers were handling it. Start with the BOB books at 3-4 years depending on interest. Read to them every night from babyhood. Video & computer math games and times tables on car rides.
Parents are the first line of defense and teachers may or may not add value.
You are correct but I still have sympathy for the girl. My wife and I basically homeschooled our son as an adjunct of attending public school. We essentially had to teach all of his Math and Reading as the curriculum in those subjects were useless.
He's a physician now, so there's that....